physics essay and objective 2022

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2022 WAEC Physics Essay and Objective Questions and Answers Now Available

Wednesday, 15th June 2022 Physics 2 (Essay) 09:30am – 11:00am Physics 1 (Objective) 11:00am – 12:15pm

2022-WAEC-PHYSICS-ESSAY-AND-OBJECTIVE-ANSWERS

PHYSICS-OBJ- Examcode.net PHYSICS OBJ 01-10: BCABBDDCDA 11-20: CAACABBBBC 21-30: BDCCBDABDA 31-40: CABBCBACCD 41-50: DDBDDDCBDD

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PHYSICS-ESSAY- Examcode.net INSTRUCTION: Answer Eight (8) Questions in All. Five Questions From Part I and Three Questions From Part II. ===================================

PART I Answer Any Five Questions From This Part. ===========================

(1) Range /PQ/ = u²sin2θ/g u = 250ms-¹ θ =42° = [250² x sin(2×42°)]/10 = (62,500 x sin84°)/10 = 6250 x 0.9945 = 6215.63m ===========================

(2) (i) They are pure semiconductors with impurities less than 1 and have teravalent crystals (ii) Presence of mobile charge carriers is intrinsic property of material (iii) No doping or addition of impurities required. ===========================

(4) F = 50N k = 100Nm-¹ F = ke 50 = 100e e = 50/100 = 0.5m Work done = (1/2)ke² = 1/2 x 100 x 0.5² = 25/2 = 12.5joules ===========================

(5a) A geostationary satellite is an earth orbiting satellite placed at an altitude of approximately 35,800km directly over the equator that revolves in the same direction which the earth rotates.

(5b) (i) Gas lasers (ii) Solid-state lasers ===========================

(6a) The S.I unit is watt per steradian (W/sr)

(6b) (i) As the temperature of the black body increases, the peak wavelength decreases. (ii) The total energy being radiated is the area under the graph. ===========================

(7) (i) Magnetic materials are materials having a magnetic domain and are attracted to an external magnetic field WHILE Non-magnetic materials are materials that are not attracted to an external magnetic field. (ii) The magnetic domains of magnetic materials are aligned either parallel or antiparallel arrangements thus they can respond to a magnetic field when they are under the influence of an external magnetic field WHILE The magnetic domains of non-magnetic materials are arranged in a random manner in such a way that the magnetic moments of these domains are cancelled out. Thus, they do not respond to a magnetic field. (iii) Magnetic materials are used to make permanent magnets are the parts of operating systems where magnetic properties are required WHILE Non-magnetic materials are used to make parts of some operating systems where no magnetic effect are expected and other things such as cases of compasses. ===========================

PART II Answer Three Questions From This Part. ===========================

(8ai) The law of inertia states that a body will continue in its present state of rest or if it is in motion, will continue to move with uniform speed in a straight line unless it is acted upon by a force.

(8aii) When the brakes of the moving vehicle are suddenly applied, or the passengers jerks forward as thet tend to continue in a straight line. The seat belt helps to provide a backward force and reduces injuries.

(8bi) The moment of a force about a fixed point is the product of the force and the perpendicular distance at the point to the line of action of the force.

(II) clock wise moment = Anticlock wise moment T x 1.5 = 54 x 0.5 T = 54×0.5/1.5 T = 18N

(III) F + T = w F = w – T F = 54 – 8 F = 36N

(8c) [TABULATE]

=STATIC FRICTION= (i) Independent of surface area in contact (ii) Depends on normal reaction ( of one solid surface on the other) (iii) Occurs between solids surfaces in contact

=VISCOSITY= (i) Depends in surface area in contact (ii) Independent of normal reaction (iii) occurs between fluid layers/solid and fluid in contact/in fluids.

(8d) By increasing the number of pulleys.

===========================

(9ai) Coulomb’s law states that the electric force between two point charges, q₁ and q₂ separated by a distance r is directly proportional to the product of the charges and inversely proportional to the square of the distance between the charges.

(9aii) Given r = 5.28×10-¹¹m k = 9.0×10⁹mF-¹ q₂ = q₁ = 1.6×10⁻¹⁹C = q Electrostatic force F = kq²/r² F = [9.0×10⁹(1.6×10⁻¹⁹)²]/(5.2×10⁻¹¹)² F = 0.852×10⁻¹⁶N F = 8.52×10⁻¹⁷N

(9bi) (i) Current I = Vin/R₁+R₂ I = Ir₁ =Ir₂ Vout = Vr₂ = Ir₁ x R₂ Vout = [Vin/(R₁+R₂)] x R₂ Vout = Vin[R₂/(R₁+R₂)]

(ii) Given; Vin/Vout = (R₁+R₂)/R₂ = 2.5 Where R₂ = 30Ω (R₁+30)/30 = 2.5 R₁+30 = 75 R₁ = 75 – 30 R₁ = 45Ω

(9bii) The volt is the work done of one joule in taking one coulomb of positive charge from one point to another.

(9c) A wooden core cannot provide path to the flux which is needed to link either the secondary or primary side

(9d) Used in medicine for visual functions. ===========================

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Physics (Essay) Paper 2 WASSCE (PC 2ND), 2022

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General Comments

The standard of the paper compared favourably with those of previous years by measuring all the domains and covering the scheme. The questions were concise and the language was simple and comprehensive. Rubrics were precise, without ambiguity and time allocations were very adequate. Candidates ‘performance is slightly better than those of previous years.

The candidates’ raw mean score of 13 and a standard deviation of 08.00 with a candidature of 40,652 indicates a better performance than that of WASSCE for Private Candidate 2021, which recorded a raw mean score of 21 and a standard deviation of 12.08 with a candidature of 26,487.

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Physics 2022 WAEC Past Questions

WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709

The area under a force-time graph represents--------

A. change in kinetic energy
B. change in momentum
C. change in work done
D. change in internal energy

From the principle of flotation, a body sinks in a fluid until it displace a quantity equal to its own?

The length of a simple pendulum is increased by a factor of four. By what factor is its period increase?

A. 0.5\(\pi\)
C. 2\(\pi\)

The linear expansivity, \(\alpha\), and cubic expansivity, \(\gamma\), of a material are related by the equation?

A. \(\gamma\)=a
B. \(\gamma\)=3\(\alpha\)
C. \(\gamma\)=2a
D. \(\gamma\)=\(\frac{1}{3} \alpha \)

Suppose three identical steel balls Q, R, and S, are placed on an undulating ground as illustrated in the diagram above. Which of the balls is/are in neutral equilibrium?

D. Q and S only
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WAEC Physics Questions and Answers 2022/2023 |OBJ & Theory Expo

February 8, 2022

The combination of our free WAEC Physics questions 2021 and the WAEC Physics answers 2021 samples for 2021 theory (essay) & OBJ (objectives) below, will help WAEC candidates to score A or B in this exam.

All the WAEC 2021 Physics Questions and Answers samples below have been completely solved for the 2021 candidates.

Each question, including the OBJ questions and the theory questions on this page has been solved and each answer is written beside the question.

WAEC Physics Expo Runs for Theory and OBJ 2021

This is 2021 free WAEC Physics Expo answers 2021 samples for 2021 theory (essay) paper 2 & OBJ (objectives) paper 1 for 2021 WAEC candidates.

With the idea you will obtain from this, you will be able to even solve every other question (including the WAEC past questions and answers on physics) by yourself.

The theory section will give you the “showing working” of each of the WAEC Physics essay and theory sample questions and answers for 2021 (i.e paper 2). Study the steps and master them in case you see similar questions during the exam.

You can also try solving the questions by yourself (following the same steps we used) and later compare the answer you get with the ones we have provided on this page. Study the entire WAEC physics questions 2021 samples on this page and check their correct answer.

WAEC 2021 Physics OBJ Questions and Answers Samples.

Use the following WAEC 202 1 Physics Objective Questions and Answers samples for the OBJ paper 1 for reference.

Study the entire sample WAEC physics questions 2021 below and check their correct answer. Proceed to the theory section at the bottom to see how each question is solved.

WAEC Physics Questions and Answers 2021/2022 expo runz solution. Solved essay & OBJ answers to correct objectives & theory [paper 1 & paper 2

1. One Joule is Equal to?

Correct Answer is C) 10 7 ergs

2. Which of these principles does Optical fiber works on?

interference
total internal reflection

The correct answer is C) total internal reflection

3. Why is the base of an electric iron usually brightly polished?

To Make it smooth and frictionless
Make it rust-proof
Reduce heat loss by radiation
Make it more durable

Correct Answer is: C) to reduce heat loss by radiation

5. A riffle of mass 15kg fires a bullet of mass 60g with a velocity of 200ms -1. Calculate the recoil velocity of the riffle.

– 0.8ms -1

The correct answer is A. -0.8ms -1

5. Which of this is the correct formula for Kinetic energy?

The correct answer is D. ½ mu 2

6. If the efficiency of a machine is 60%, find in joules, the work done by the student using this machine to raise a load of 150kg through a vertical distance of 2.5m (g = 10ms -1 )

2500 joules

The correct answer is D. 6250 Joules

7. Calculate the height from which a body is released from rest if its velocity just before hitting the ground is 30ms -1

The correct answer is B. 45m

8. A mango fruit from the top of its tree which is 5m long drops to the ground. How long does it take the mango to reach the ground?

The correct answer is D. 1.0s

2021 WAEC Past Questions and Answers for Physics.

Additionally, the following WAEC past questions and answers on physics objective will help you to get more ideas on how to solve physics WAEC questions.

Also, do well to scroll to the bottom to see how each of these questions is solved to arrive at the answer.

1. The equation P x V y T z = constant is Gay-Lussac’s law if____?

x = 0, y = 0 and z = 1
x = 1, y = 0 and z = -1
x = 1, y = 1 and z = 1
x = 0, y= 0 and z = 0
x = -1, y = 1 and z = 0

The correct answer is B. x = 1, y = 0 and z = -1

2. Calculate the effort put into a machine whose efficiency is 75% and lifts a load of 1000N, if its velocity ratio is 4.

The correct answer is E. 333.33N

Theory question: A rocket is burning fuel at the rate of 200gs -1 and ejecting all the gas in one direction at the rate of 400ms -1 . What is the maximum weight the rocket can have if it is going to move vertically upwards?

Mass of gas per second = 200 / 1000 kgs -1 .

Velocity of expulsion = 400ms -1 .

Momentum change per second = 200 / 1000 x 400kgms -2 .

From Newton’s second law, we have F =W = 200 / 1000 x 400N

Physics Essay and theory sample Questions and Answers for paper 2.

Below are the showing working of the WAEC Physics essay and theory sample questions and answers for 2021 paper 2.

Study the steps and master them in case you see similar questions during the exam.

1 . A stationary ball is hit by an average force of 50N for a time range of 0.03sec. Calculate the impulse experienced by the ball.

Solution: impulse (I) = Ft

=5×0.03

2. Calculate the recoil velocity of a riffle of mass 15kg which fires a bullet of mass 60g with a velocity of 200ms -1.

Mass of the riffle = 15kg, while the mass of the bullet = 60g

The velocity of the bullet = 200ms -1.

The momentum before firing is zero

Momentum after firing = 15 x V + 60/100 X 200 = 15v + 12

Since the momentum is conserved, we will have;

15v + 12 =0

v = – 12 / 15 = -0.8ms -1

Question 3. i . What is the width of the image of an object which subtends an angle of 8 0 at the pinhole of a camera 0.5m long?

ii . How long is the image of the sun on this camera? Take the mean distance of the sun as 1.5 X 10 11 m, and the diameter of the sun as 1.4 X 10 9

Let the width of the image = h (m)

tan8 0 = h/0.5m

h = 0.5 X tan8 0 = 0.5 X 0.1405m = 7cm Ans.

Let the radius of the sun be l (m)

l / 0.5 = 0.7 X 109/1.5 X 10 11 =tan0

l = 0.5 X 0.7 X 109/1.5 X 1011 = 0.233X10-2m

Therefore, the diameter of the image = 0.46cm

The combination of the above WAEC Physics questions 2021 and the WAEC Physics answers 2021 samples for essay, theory, and OBJ (objectives) above, will surely help candidates a lot.

So kindly follow the way each of the questions is solved and master them.

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I need questions and answers

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WASSCE Physics Essay and Objectives Past Questions Paper 1& 2 For 2023 Candidates

WASSCE Physics Essay and Objectives Questions Paper 1& 2 For 2023 Candidates:

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Find below the WASSCE Physics Essay and Objectives 2019 for 2022 JHS 3 students.

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Complete WAEC Physics Questions And Answers For 2023 (Objectives & Theory)

See the complete WAEC Physics questions and answers for 2023 (objectives and theory) here.

Information contained in this article is a special bonus for those who are going to sit for the West African Examination Council (WAEC) in 2023.

If you have been searching for the real questions and answers for the 2023 WAEC examination, I am glad to inform you that you have finally come to the right site where all the objective and theory questions for physics have been correctly provided.

In this article, you will be privileged to see all the ‘Expo’ about WAEC physics questions for 2023 .

Carefully read this article to the end if you are really interested in the 2023 WAEC physics questions and answers.

2023 WAEC Physics Objective Questions

2023 waec physics theory questions, 2023 waec physics theory answers.

The following are the expected 2023 WAEC Physics objective questions and their respective answers.

1. Three capacitors each of capacitance 18µf are connected in series. Calculate the effective capacitance.

2. Two spheres of masses 100kg and 90kg respectively have their centres separated by a distance 1.0m. Calculate the magnitude of the force of attraction between them

(a= 6.70 x 10-‘l Nm² kg²).

A.6.70 x 10’N

B. 6.70 x 10-1ºN

C. 6.03 x 10-10N

D. 6.03 x 107N

3. Local action is normally prevented in a simple electric cell by

A. introducing an oxidizing agent in the acid

B. not drawing current continuously for a long period.

C. amalgamating the surface of the plate

D. using a porous pot to isolate from the acid.

4. The lead acid accumulator consists of

A. lead as the positive electrode

B. lead oxide as the negative electrode

C. Hydrochloric acid as the electrolyte

D. Tetraoxosulphate (II) acid as electrolyte.

5. The boiling point of naphthalene is 78°c. What is the temperature in Kelvin?

6. The current in reversed biased junction is due to

A. majority carriers

C. minority carriers

D. electrons.

7. When impurities are added to semi-conductors, the conductivity of the semi-conductors

A. increases

B. decreases

C. remains constant

D. increases then decreases.

8. The time it will take a certain radioactive material with a half-life of 80 days to reduce to 1/32 of its original number is

A. 180 days

B. 200 days

C. 250 days

D. 300 days

9. If two inductors of inductances 3H and 6H are arranged in series, the total inductance is

10. The amount of energy released when 0.5kg of uranium is burn completely is

A. 1.5 x 10¹J

B. 4.5 x 10 8 J

C. 1.5 x 10¹ 6 J

D. 4.5 x 10¹ 6 J

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11. The north pole of a magnet can never be separated from the South Pole because of a property as

A. magnetic monopole

B. magnetic dipole

C. magnetic quadrupole

D. magnetic octopole

12. An electric device is rated 2000W, 250V. The correct fuse rating of the device is

13. The ray which causes gas molecules to glow is known as

A. gamma ray

B. molecule ray

C. cathode ray

D. anode ray

14. Marching soldiers crossing a suspension bridge are usually advised to break their steps to avoid damaging the bridge owing to

A. Resonance

B. Swinging

C. Vibration

D. Oscillation

The figure here shows 3 capacitors connected in series. The potential difference across 6uf capacitor is

16. The electric field intensity in a place where a charge of 10 -10 C experiences a force of 0.4N is

A. 8.0 x10°NC-¹

B. 4.0 x 10°NC ¹

C. 4.0 x 10-NC-¹

D. 8.0 x 10-¹2NC-¹

17. Satellite communication makes use of

A. sound waves

B. radio waves

C. infra-red rays

D. Visible light

18. The velocity of sound in air will be doubled if its absolute temperature is

C. quadrupled

D. constant

19. The process whereby the molecules of different substances move randomly is called

B. Capillary

C. Diffusion

D. Surface-tension

20. The process whereby a liquid turns spontaneously into vapour is called

B. evaporation

C. sublimation

D. regelation.

In the reaction, X is

C. electron

D. neutrino

22. The resistance of a piece of wire of length 20m and cross sectional area 8 x 10 6 m² is

(resistivity of wire = 4 x 10 -7 ohmm)

23. ………….. is the value of F when in equilibrium in the diagram below.

With the above diagram, if the system is in equilibrium, the tension in the string Q is

25. A force of 200N acts between two objects at a certain distance apart. The value of the force when the distance is

26. The particle and wave nature of matter are demonstrated in the equation

B. λ = 2dsin 0

C. λ = hc/E

27. A radio isotope has a decay constant of 10-75-¹. The average life of the isotope is

A. 1.00 x 10 -7 5

B. 1.00 x 10 1 5

C. 6.93 x 10 7 5

D. 6.93 x 10 6 5

28. X-rays can be used in the study of crystals structure because they

A. are invisible

B. are very fast

C. have an extremely short wave length.

D. have a very long reaching wave length.

29. Fluorescent tubes produce light by the

A. thermal agitation of electron in the tube

B. refraction of light by gas

C. excitation of gas molecules

D. conduction of solar energy.

30. An a.c circuit of E.M.F 12V has a resistor of resistance 892 connected in series to an inductor of inductive resistance 160 and a capacitor of capacitive resistance 109. The current flow in the circuit is

31. If a tuned radio receives R,L,C series circuit for resonance, the inductive resistance and capacitive resistance X₁ and X respectively are related as

A. X₁ = 2 X

D. X₁ = 1/xc

32. An a.c circuit of the energy stored in an inductor of inductance 5mH when a current of 6A flows through it is

A. 1.4 x 10²J

B. 1.8 x 10²J

C. 9.0 x 10 -2 J

D. 9.0 x 10 -³ J

33. To protect a material from the influence of an external magnetic field, the material should be kept in a

A. soft iron ring

B. square steel ring

C. Loop of copper wire

D. triangular zinc.

34. A steady current of 2A flows in a coil of E.M.F 12V for 0.4s. A back E.M.F of 3V was induced during this period. The stored energy in the Loop that can be utilised is

In this diagram, the ratio of the electric power dissipated in the 692 and 392 resistors respectively is

36. A cell whose internal resistance is 0.592 delivers a current of 4A to an external resistor. The last voltage of the cell is

37. Given three capacitors 0.3uf, 0.5uf, 0.2μf, the joint capacitance when arranged to give minimum capacitance is

38. The instrument used for securing a large number of similar charges by induction is called

A. electroscope

B. proof plane

C. capacitor

D. electrophorus.

39. The pitch of a sound note depends on

A. frequency

D. harmonics

40. In which of the following materials media would sound travel fastest?

41. In a Daniel cell, the depolariser, positive and negative electrodes are respectively

A. Copper sulphate, copper zinc

B. Manganese dioxide, carbon and zinc

C. Sulphuric acid, lead oxide and lead.

D. potassium hydroxide, nickel and iron.

42. Tea pots are often silver-coated to prevent heat loss by

A. Convection only

B. Conduction only

C. Radiation only

D. Convection and Conduction.

43. If the angle between two vectors P and Q is 0°, the vectors are said to

A. be parallel

B. perpendicular

C. intersect at angle 45°

D. intersect at angle 60°

44. A body of mass 4kg is acted on by a constant force of 12N for 3s. The kinetic energy gained by the body at the end of the time is

45. As the pressure of a fluid increases, its viscosity

A. Increases

B. Decreases

C. Remains constant

D. Increases then decreases.

46. A machine whose efficiency is 60% has a velocity ratio of 5. If a force of 500rt is applied to lift a load P, what is the magnetide of P?

47. The diagram shows 4N, 6N, 10N and 8N which act at a point O in the directions indicated.

The net horizontal force is

48. The change in volume when 480kg of ice is completely melted is

(density of ice = 900kgm³, density of water = 100kg m³)

49. If a force stretches a wire from 20m to 20.01m, what is the amount of force required to stretch the same material from 20m to 20.05m?

50. When left in a freezer, a bottle full of water cracks on freezing into ice because of the

A. contraction of the bottle

B. decrease in the volume of water

C. increase in the volume of water

D. expansion of the bottle.

See also: How to Pass WAEC Examination at One Sitting

(a) Define specific heat and calorie.
(b) Find the mass of a steel with specific heat capacity of 330J/kgk, if the temperature is raised from an immersion heater of 15°C to 60°C with a current of 16.77A from 50.6V and the time taken being 1hr 15mins.
(c) Describe how you would compare approximately the rate at which a given gas ring and electric hot plate can supply heat to a vessel placed on each of them.
(a) i. What is meant by the caloric value of a solid fuel?

ii. Explain the terms (i) thermal capacity (ii) water equivalent.

(b) Distinguish between the heat capacity of a body and the specific heat capacity of a substance.
32g of water at 60°C is poured into 60g of cold water at 12°C, which is contained in a calorimeter of mass 40 g, and specific heat capacity of 0.1J/gk. Neglecting loss of heat, show that the final resulting temperature is 29°C.003 bm024
(a) Explain what is meant by

(i) the expansion of water whose rise in temperature is anomalous

(ii) water has a high heat capacity!

(b) A piece of metal of mass 50g heated to 100°C is dropped into 200g of water at 14°C in copper calorimeter weighing 80g and raises the temperature to 70°C. What is the heat capacity of the piece of metal? [Specific heat capacity=0.4J/gk]

4. (a) The refractive index of glass and water with respect to air are and 4/3 respectively. What is the refractive index of glass to water.

(b) i. Show that when a ray is refracted through a dense medium to a denser medium, the refractive index changes.

ii. Name five applications of total internal reflection. 9. (i)What is meant by total internal reflection and critical angle?

Give two factors affecting total internal reflection

(c) i. Find the refractive index of a prism, when a light ray is incidented on the prism of angle 45° and if the refracting angle of the prism is 60°

ii. Find the thickness of a prism of refractive index of 1.5, if the prism displacement of the object is 1.3m. 12(a)

(d) i. State the laws of refraction of light.

(ii) Describe an experiment to determine the refractive index n of the material of an equilateral triangle glass prism using the minimum deviation method.

(a) i. State Lenz’s law.

ii. State the essential conditions for the production of an induced e.m.f in a conductor. What determines its magnitude?

(b) i. State Faraday’s law of electromagnetic induction. Draw a labelled diagram of a simple step-up transformer.

ii. Current from the secondary transformer working 240v AC main, the voltage required across the primary side is 96kv. Assuming that the transformer is 100% effective, what ratio of number of turns on the secondary to number of turns in the primary is needed in its windings?

ii. A rectangular coil of wire attached to a commutator rotates between the poles of a permanent magnet to form a dynamo. What is (i) the position of the coil when the e.m.f is greatest (ii) the function of the commutator.

Find the power wasted as internal energy in bundle conductor, when 10kw is transmitted through the bundled conductor of resistance 0.592 at 200v
Describe with the aid of a diagram, an experiment to induce a current in a coil of wire and indicate the direction of the current.
(i) State the laws of electromagnetic induction. (ii) Describe a simple experiment to show how an induced e.m.f can be produced.

1a. Specific Heat Capacity of a substance can be defined as the quantity of heat supplied or required to raise the temperature of a unit mass of 1kg through a unit rise in temperature of 1kelvin.

Calorie can be defined as the unit of energy.

Solution to 1b

t = 1 hr 15mins

1 hr = 60 x 60 = 3600 sec –

15 mins = 15 x 60 = 900 secs –

t = 3600+ 900 = 4500secs

I= 16.77A, V= 50.6V

M=?, C = 330J/kgk

0 ₂= 60°C, 0 1 =15°C

Using the principle of electrical method, heat loss by the heater – heat gained by the solid

Q = Mc [0₂-0₁]

Ivt = Mc [ 0 ₂- 0 ₁]

= 16.77 x 50.6 x 4500 = m x 330 [60 – 15]

= 3818529 = m x 330 x 45

m = 3818529/330 x 45

3818529 /14850

m = 257.14kg

The mass of the solid is 257.14kg

Check also: Complete WAEC Biology Question and Answers

For more solutions to the theory questions, keep refreshing this page regularly.

WAEC Literature Questions and Answers 2024/2025 | Novels, Essay & Objective

Waec civic education questions and answers 2024 | essay & objective, 3 thoughts on “ complete waec physics questions and answers for 2023 (objectives & theory) ”.

Thanks sir… But I can’t see those obj answers am sorry to ask

The questions are not complete

please can you post the objective answers

WAEC Physics 2024 Answers for Essay-Obj Questions Released.

The Waec physics answers for 2024 questions can now be seen here. The West African Examination Council (WAEC) Physics paper will be taken on Tuesday, 21st May 2024.

WAEC Physics questions and answers for essay objectives are now available. The Waec Physics 2 (Essay) paper will start by 2:00 pm and will last for 1hr 30 mins while the Waec Physics 1 (Objective) exam will commence at 3:30 pm and will last for 1hr 15 mins.

Following recent reviews, it has been found out that the weaknesses of candidates in WAEC Physics questions included a lack of understanding of the fundamentals of the course, inability to take precise measurements to the required accuracy, inability to plot graphs correctly and disregard of instruction, which makes them loose precious marks.

In this post, we will be sampling wa ec physics questions for candidates that will participate in the SSCE examination from past questions.

WAEC Physics Answers 2024 Questions.

PAPER 2 [Essay] Read Instructions. Write your answers in the answer booklet provided.

1. Explain why mercury does not wet glass while water does.

ANS: Mercury does not wet glass because (force of) cohesion/attraction of mercury molecules is greater than (force of) adhesion/attraction between glass and mercury molecules.

Water wets glass because (force of) adhesion/attraction between glass and water molecules is greater than (force of) cohesion/attraction of water molecules

2. (a) State Faraday’s second law of electrolysis. (b) An electric charge of 9.6 x 104 C liberates 1 mole of substance containing 6.0 x 1023 atoms. Determine the value of the electronic charge. ANS: (a) If the same quantity of electricity is passed through different voltameters/electrolytes connected in series the masses of the substances liberated/deposited during electrolysis is (directly) proportional to their chemical equivalents. (b) Let e represent the electronic charge. e = Faraday’s constant Avogadro’s number = 9.6 x 104 6. 0. x 1023 = 1.60 x 10-19C

3. State: the difference between plane polarized light and ordinary light; two uses of polaroids

ANS: In plane-polarized light, the vibrations of the particles are confined to a single plane perpendicular to the direction of propagation of light while in ordinary light, the vibrations of the particles are in all planes. Uses of Polaroid – sunglasses (to reduce the intensity of sunlight) – to eliminate reflected light/glare – saccharimeter/measurement of the concentration of sugar solution. – stress analysis/photoelasticity.

4. (a) State Faraday’s second law of electrolysis. (b) An electric charge of 9.6 x 104 C liberates 1 mole of substance containing 6.0 x 1023 atoms. Determine the value of the electronic charge. ANS: (a) The mass of an element deposited /liberated during electrolysis is (directly) proportional to the chemical equivalent of the element. (b) Let e represent the electronic charge. e = Faraday’s constant Avogadro’s number = 9.6 x104 6. 0. x 1023 = 1.60 x 10-19C

5. Explain the following terms: (a) tensile stress; (b) Young’s modulus.

6. (a) Define diffusion. (b) State two applications of electrical conduction through gases. ANS: (a) Diffusion is the process by which substances mix with one another due to the random motion of their molecules. (b) Applications of electrical conduction through gases include: – In the advertising industry/ Neon signs – In lighting/ fluorescent tubes – Identification of gases – Cathode ray oscilloscope/ T.V. tubes.

7. (a) List two properties of cathode rays. (b) Explain how the intensity and energy of cathode rays may be increased. ANS: (a) Properties of cathode rays: – They are negatively charged. – travel in a straight line in a field-free space. – are deflected by an electric/magnetic field. – possess (kinetic) energy. – possess momentum. (b) The intensity of cathode rays may be increased by raising the temperature of the cathode /increasing the current through the heater. They may be increased by raising the potential difference between the anode and the cathode/anode potential.

8. Give three observations in support of de Broglie’s assumption that moving particles behave like waves.

9. (a) Differentiate between plane polarization and interference as applied to waves. (b) List two uses of polaroids. ANS: (b) They are used in: – production of 3-dimensional films – determination of the concentration of sugar solution – polaroid cameras – sunglasses.

10. (a) State two factors that affect the mass of elements deposited during electrolysis. (b) List two non-electrolytes. ANS: (a) time, current /quantity of charge, nature/ e.c.e of the element. (b) water, kerosene, petrol, benzene, ethanol.

12. (a) i. State two advantages of alcohol over mercury as a thermometric liquid. ii. When the bulb of a thermometer is placed in a beaker of hot water, the level of mercury first falls and then rises gradually. Explain this observation. (b) List two factors, other than temperature, that affect the rate of evaporation of a liquid. (c) A block of lead of mass 100kg in a crucible and at a temperature of 40oC was placed in an electric furnace rated 10kW. If the melting point of lead is 320oC, calculate the: (i) quantity of heat required to heat the lead to its melting point; (ii) additional heat energy required to melt the lead; (iii) time taken to supply this additional energy. (Specific heat capacity of lead = 120JKg-1 K-1 (Specific latent heat of fusion of lead = 2.5 x 104 JK-1) (d) State two precautions necessary in an experiment to determine the specific latent heat of vaporization of water.

ANS: (a) i. Advantages of alcohol over mercury as a thermometric liquid – lower freezing point – cheaper – easily expansively. ii. the glass of the bulb of the thermometer first expands; hence the mercury level fails. The expansion of the mercury increases more than that of the glass and the liquid rises. (b) Factors other than temperature affecting the rate of evaporation of a liquid – wind – humidity/ dryness of the air – nature of liquid/ viscosity /density – the area of liquid exposed – pressure.

13. (a) State two factors that affect the angle of deviation of a ray of light through a triangular glass prism. (b) Seven virtual images of an object are formed when two plane mirrors are inclined at an angle 0 to each other. Calculate the value of 0. (c) By means of a ripple tank, a student was able to generate a series of transverse waves by varying the frequency ofthe dipper, and all the generated waves covered a distance of 0.80 m in 0.2 s. (i) Determine the speed, v, of the waves (ii) Copy and complete the table given above in your answer booklet. (iii) Plot a graph with f on the vertical axis and h -1 on the horizontal axis. (iv) What does the slope of the graph represent?

14. The Fig. 5.1 below shows a ray of light entering and passing along an optical fibre.

(a) Calculate the refractive index of the glass in the optical fibre. (b) Explain why the ray of light is totally internally reflected at A. (c) Both optical fibre and copper wire are used to transmit data. Optical fibre is cheaper and can carry more data per second than copper wire. State one other advantage of using an optical fibre rather than copper wire to transmit data.

15. (a) State two differences between a sound wave and a radio wave (b) Explain why a vibrating tuning fork sounds louder when its stem is pressed against a tabletop than when held in air. (c) State two conditions necessary for the: i. production of stationary wave in a medium; ii. formation of interference wave patterns; iii. occurrence of total internal reflection of a wave. (d) i. A ray of light is incident on one face of an equilateral glass prism. Draw a ray diagram to show the path of the ray through the prism. ii. Calculate the refractive index of the glass if the angle of minimum deviation is 41o.

WAEC Physics Objective Questions 2024.

Paper 1 [Objective] Answer ALL questions in this section. Shade your answers on the answer booklet provided.

1. An electron moves with a speed of 2.00 x 107 ms-1 in an orbit in a uniform magnetic field of 1.20 x 10-3T. Calculate the radius of the orbit. [Mass of an electron = 9.11 x 10-31kg; charge on an electron = 1.61 x 10-19C]

2. A tennis ball projected at an angle attains a range R = 78 m. If the velocity imparted to the ball by the racket is 30ms-1, calculate. [g=10ms-2]

3. A metallic bar 50 cm long has a uniform cross-sectional area of 4.0 cm2. If a tensile force of 35kN produces an extension of 0.25 mm, calculate the value of Young’s modulus.

4. A stone projected horizontally from the top of a tower with a speed of 4 ms-1 lands on the level ground at a horizontal distance of 25 m from the foot of the tower. Calculate the height of the tower. [g = 10 ms-2]

5. A spiral spring with a metal extends by 10.5cm in air. When the metal is fully in water, the spring extends by 6.8 cm. Calculate the relative density of the metal (Assume Hooke s law Is obeyed)

6. A ray of light is incident on an air-glass boundary at an angle t? If the angle between the partially reflected ray and the refracted ray is 90°, calculate θ given that the refractive index of glass is 1.50.

7. A ball is projected horizontally from a height with a velocity of 40 ms-1. Calculate the drop in height after traveling a horizontal distance of 30m. [Neglect air resistance; g = 10 ms-1]

NOTE: There is nothing like the Waec physics expo online. Do not be deceived by fraudsters posing with fake Waec physics answers on the internet. The resources above on WAEC Physics Answers have been made available to assist candidates understand the required standards expected in Physics final Examination.

Keep following, more questions and answers will be added soon.

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NABTEB Physics Past Questions and Answers in 2022 NBC/NTC

Download Now! National Business and Technical Examination Board NABTEB Physics Past Questions and Answers (Objective and Essay)

Are you writing this upcoming National Business/Technical Certificate Examination NBC/NTC, did you registered for the subject Physics?

If yes, then one of the sure way of passing this subject easily is to study the exam body past questions and answer.

We at stcharlesedu.com has compiled a good number of NABTEB Past Questions on Physics in pdf format. Physics Section A – Objective Physics Section B – Essay

Over the years, we have received sms and call from student who used the past question, and the tremendous role it play in making them come out in flying colour.

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Table of Contents

1 NABTEB Past Questions on Physics
2 NBC/NTC Physics Objective Questions
3 NABTEB Physics Theory/Essay Questions
4 Free NABTEB Objective Past Questions in Physics
5 How to get NBC/NTC Physics Objective & Essay Q and A

NABTEB Past Questions on Physics

PHYSICS PAPER I (OBJECTIVE AND ESSAY) (130 Marks)

PAPER CODE:004-1 Time: 2 hours 45 minutes

INSTRUCTIONS: This paper consists of two sections: A and B. Section A is Objective and Section B is Essay. Section A comprises 50 Objective questions which should be answered by all candidates in 50 Minutes; Section B consists of five Essay questions out of which candidates are expected to answer four in 1 Hour 30 Minutes.

NBC/NTC Physics Objective Questions

SECTION A OBJECTIVE Time: 1 Hours 15 Minutes (50 Marks)

1. Which of the following is a fundamental unit? A. Metre per second B. Newton C. Kilogram per cubic metre D. Second

2. The relative density of acid in a car battery can be measured with a A. hydrometer B. manometer C. hygrometer D. barometer

3. Determine the value of the reading on the instrument below A. 8.50mm B. 4.69mm C. 4.40mm D. 3.70mm

4. Which of the following will reduce the surface tension of a liquid? I. Alcohol II. Oil III. Detergent solution A. I and II only B. I and III only C. II only D. I, II and III only

5. Determine the acceleration of the motion represented by the velocity-time graph below Images missing A. 80ms -2 B. 10ms -2 C. 5ms -2 D. 3ms -2

6. The pressure of a gas supports 0.7m of mercury of relative density 13.3. What is the height of water column which the gas pressure will support? A. 0.70m B. 1.90m C. 9.31m D. 19.00m

7. During an Olympic game, a sprinter made one lap round a 400m track in 30 sec. Find the average velocity of the sprinter. A. 7.5×10-2W-1 B. 0.0ms-1 C. 13.3ms-1 D. 1200.0ms-1

8. A mass of 30g is hung at the 20cm mark of a uniform metre rule which is pivoted at the 40cm mark. Calculate the weight of the metre rule. A. 10g B. 15g C. 27g D. 60g

9. The density of water is highest at A. -4°C B. 4°C C. 0°C D. 100°C

10. Which change(s) can alter the boiling point of water? I. Increasing the volume of water II. Increasing the external pressure III. Increasing the quantity of impurities

A. I only B. II only C. Hand III only D. I, II and III only

11. Calculate the resultant force of the forces in the diagram below diagram missing A. 5.5N B. 10.2N C. 11.7N D. 18.9N

12.The centripetal force F experienced by an object of mass m moving with a linear velocity v in a circle of radius r is expressed as A. F = mr2/v B. F = mv/r C. F = mv2/r D. F = mv2/r2

13. A graduated cylinder is filled with water to 40.5m3. When a piece of copper was dropped into the cylinder, the water level rises to 63,9m3. Calculate the mass of the copper pieces if its density is 8.9kg/m 3 .

A. 8.8kg B. 23.4kg C. 40.5kg D. 208 3kg

14.A machine with a velocity ratio of 20, moves a load of 2100N with an effort of 150N applied to it. What is the efficiency of the machine? A. 35% B. 60% C. 70% D. 80%

15. A force of 15N acts for 15sec on an object. Calculate the resulting change in momentum produced by the body. A. 30 Ns B. 150 Ns C. 225 Ns D. 600 Ns

16.The linear expansivity of brass is 2 x10 -5 /0C. If the volume of a piece of brass is 12cm3 at 0°C, what will be its volume at 100°C?

A. 12.027cm3 B. 12.072cm3 C. 12.079cm3 D. 12.082cm3

17. A block of ice 2kg absorbs heat energy from its surrounding and changes into water at the same temperature. The heat absorbed is referred to as A. latent heat of fusion B. specific heat capacity C. specific latent heat of fusion D. latent heat of vaporization

18. Which of the following statements is not true about evaporation? A. Evaporation takes place at all temperature B. Evaporation takes place on the surface of a liquid C. Addition of 5gm of salt into a litre of water stops the evaporation of water D. it takes place faster under reduced pressure

19.The length of a metal rod is 110cm at 0°C. Calculate the temperature at which the final length is 119.5cm (Coefficient of linear expansivity of metal = 0.00002°C -1 ) A. 4318.2°C B. 4200.0°C C. 3678.2°C D. 2560.7°C

20. The difference between conduction and radiation of heat is that A. conduction requires a material medium to transfer heat while radiation does not B. conduction does not require material medium to transfer heat while radiation requires C. conduction molecules vibrate randomly while in radiation they do not D. radiation molecules vibrate about their mean position while conduction molecules are static

21. Instrument for determining the upper fixed point of a mercury-in-glass thermometer is A. pressure cooker B. pure melting ice C. hypsometer D. calorimeter

22.150g of hot water at 85°C is added to 250g of cold water at 25°C. Calculate the final temperature of the mixture (Neglect heat absorbed by the container). (specific heat capacity of water 4.2Jg -1 k -1 ). A. 30.0°C B. 47.5°C C. 55.0°C D. 60.0°C

23. At room temperature, a piece of iron feels colder than a piece of wood because A. wood is a better conductor and losses heat faster B. iron is a better conductor and losses heat faster C. iron is an insulator D. wood is stronger than iron

24.The ice and steem points of an ungraduated thermometer are found to be 198mm apart. What temperature is recorded in °C when the length of the mercury thread is 59.4mm above the ice point mark? A. 30.0°C B. 33.3°C C. 35.0°C D. 37.0°C

25. The instrument used to measure the temperature of the human body is called A. Thermometer B. Clinical thermometer C. Resistance thermometer D. Thermocouple

26. What is the quantity of heat needed to raise the temperature of 60g of steel from 25°C to 75°C. (specific heat capacity of steel – 400-J/kpk) A. 1.20×10 3 J B. 1.80×10 3 J C. 1.32×10 3 J D. 1.82×10 3 J

Want more Physics Objective Test Questions like this? Get the Complete NABTEB Physics Exam Past Questions and Answers (Obj and Essay) in PDF Format from us.

NABTEB Physics Theory/Essay Questions

SECTION B ESSAY (80 Marks) Time: 1 Hour 30 Minutes Answer four questions in all. All questions carry equal marks.

1.(a) Explain the term work.

(b). Draw a labelled diagram of a pulley system with a velocity ratio of 5.

(c). A man pulls up a box of mass 70kg using an inclined plane of effective length 4cm onto a plate form 2.5m high at uniform speed. If the frictional force between the box and the plane is 100N, draw the diagram of all the forces acting on the box in motion and calculate the

(i) minimum effort applied in pulling up the box. (ii) velocity ratio of the plane (iii) mechanical advantage of the plane (iv) efficiency of the plane (v) energy lost in the system (vi) work output of the man (vii) total power developed by the man given that the time taken to raise the box onto the platform is 50s (g = 10m/s 2 ).

2.(a)(i) Explain how audible beats are formed. (ii). What is meant by the critical angle of medium? (iii). Show by a ray diagram how a right angle glass prism may be used to turn a ray through 180°.

(b). Explain with the aid of diagram how a concave mirror could be used to ignite a: (i). piece of carbon paper (ii). produce an exact copy of a picture on a screen.

(c). A stationery siren emits a note of frequency 440Hz as a train moving with a speed of 30m/s approaches. Calculate the frequency of the emitted note that would be received in the train, (speed of sound wave = 331 m/s).

(d). A light of wavelength 6.0×10 -5 cm is made to illuminate a grating of 600lines per cm. Find the angle to the normal at which the first order image is produced.

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Free NABTEB Objective Past Questions in Physics

Click to Download your NTC/NBC Past Question on Physics Paper 1 Section A and B Link 1: Free NBC/NTC Physics Past Questions Link 2: Free NBC/NTC Physics Past Questions

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NECO Physics Past Questions PDF Download [Free] – Objective, Theory, Practical
NABTEB Past Questions and Answers Nov/Dec or May/June in 2021
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General Metal Work Past Questions for NABTEB SSCE in 2022

NECO Physics Questions and Answers 2023/2024 | Essay and Objective

NECO Physics Questions and Answers 2023. I will be showing you the NECO Physics objective and theory answers as well as repeated questions for free in this post. You will also understand how NECO Physics questions are set and how to answer them.

The National Examinations Council (NECO) is an examination body in Nigeria that conducts the Senior Secondary Certificate Examination and the General Certificate in Education in June/July and December/January respectively.

Table of Contents

NECO Physics Objectives And Essay Answers 2023 (Expo)

The 2023 NECO Physics expo will be posted here today 27th July during the NECO Physics examination. Keep checking and reloading this page for the answers.

NECO 2023 Physics Answers Loading.. .

NECO Physics OBJ Answers: The Answers will soon be posted here. Be patient we are solving.

1-10: EADCAEBEBC

11-20: ECDDCDBCCB

21-30: CECBEADCBB

31-40: BADDCDCAAA

41-50: EDACDCACAA

51-60: CEBACCBCAC

Essay Answers:

(i) Solar water heaters: These are devices that use solar collectors to absorb energy from the sun and heat water for domestic or industrial use.

(ii) Solar air heaters: These are devices that use solar collectors to absorb energy from the sun and heat air for space heating or ventilation purposes.

Total Magnification = Magnification of Objective Lens × Magnification of Eyepiece Lens.

Total Magnification = 10

Magnification of Objective Lens = 2

Let “E” represent the magnification of the eyepiece lens.

Static friction is a type of friction that exists between two surfaces in contact with each other when they are not moving relative to each other.

Coefficient of static friction (μs) = Force of static friction/ Normal force

Force of static friction = 3N

Normal force = 5N

μs = 3N / 5N = 0.6

The velocity ratio of a machine is the ratio of the distance moved by the effort to the distance moved by the load. It is a measure of the effectiveness of a machine in transmitting force.

Velocity ratio = distance moved by effort / distance moved by load

A second order lever has the load in the middle, with the effort applied on one side and the fulcrum on the other. The effort arm is longer than the load arm, which means the machine has a mechanical advantage. Examples of second order levers include wheelbarrows and nutcrackers WHILE A third order lever has the effort applied on one end, the load on the other end, and the fulcrum in between. The load arm is longer than the effort arm, which means the machine has a mechanical disadvantage. Examples of third order levers include tweezers and shovels.

Q4&5????

– Angle of incidence (θ₁) = 60°

– Speed of light in air = 3×10⁸ m/s

– Speed of light in glass = 2×10⁸ m/s

The refractive index (n) of a medium can be calculated using the formula:

n = speed of light in vacuum / speed of light in the medium

Refractive index of air (n₁):

n₁ = speed of light in vacuum / speed of light in air

n₁ = 3×10⁸ m/s / 3×10⁸ m/s

Refractive index of glass (n₂):

n₂ = speed of light in vacuum / speed of light in glass

n₂ = 3×10⁸ m/s / 2×10⁸ m/s

Using Snell’s law to find the angle of refraction (θ₂):

n₁ × sin(θ₁) = n₂ × sin(θ₂)

1 × sin(60°) = 1.5 × sin(θ₂)

sin(θ₂) = (1 × sin(60°)) / 1.5

sin(θ₂) = sin(60°) / 1.5

θ₂ = arcsin(sin(60°) / 1.5)

θ₂ ≈ arcsin(0.86602540378 / 1.5)

θ₂ ≈ arcsin(0.57735026919)

θ₂ ≈ 35.26°

(i) Electric motors: Electromagnets are used in electric motors to convert electrical energy into mechanical energy. An electric motor contains an armature with a coil of wire that rotates within a magnetic field created by an electromagnet.

(ii) Magnetic resonance imaging (MRI): Electromagnets are used in MRI machines to create a strong magnetic field that aligns the protons in the body’s tissues. Radio waves are then used to create images of the body’s internal structures.

The soft iron bar can be converted to a magnet by placing it in contact with a bar magnet. When the bar magnet is brought close to the soft iron bar, the magnetic domains in the soft iron bar become aligned with the magnetic field of the bar magnet. This causes the soft iron bar to become magnetized and it will now be able to attract other magnetic materials.

Reactance refers to the opposition that an electrical circuit or component exhibits to the flow of alternating current (AC). It is a fundamental concept in understanding AC circuits and is closely related to the concept of impedance.

Xc = 1/(2πfC)

Xc = Capacitive reactance in ohms (Ω)

π = 3.14 (approximate value)

f = Frequency in Hertz (Hz)

C = Capacitance in Farads (F)

Capacitive reactance (Xc) = 3000Ω

Capacitance (C) = 5µF = 5 * 10-⁶F

Rearranging the formula to solve for frequency (f):

f = 1/(2*π* Xc* C)

Substituting the given values:

f = 1/(2 * 3.14 * 3000 * 5 * 10-⁶ )

f = 1/(2 * 3.14 * 3000 * 0.000005)

f = 1/(6.28 * 0.015)

f = 1/0.0942

f=10.62Hz (approx. 2 decimal).

Photoelectrons are electrons that are emitted from a material when it absorbs electromagnetic radiation, typically in the form of photons (light). This phenomenon is known as the photoelectric effect.

Formula for threshold frequency;

F= Frequency

E = Work function(Energy)

h= Plank’s constant (6.6×10-³⁴)

Converting the work function to joules:

Work function (ϕ) = 3.5 eV = 3.5 × 1.6 × 10-¹⁹ J = 5.6 × 10-¹⁹ J

Substituting the values

F= 5.6 × 10-¹⁹/6.6×10-³⁴

F= 8.48×10¹⁴Hz

(i) Radiation exposure: X-rays are a type of ionizing radiation, which means that they can damage the DNA in cells and increase the risk of cancer. Exposure to high doses of X-rays can also cause radiation sickness, which can lead to nausea, vomiting, and hair loss.

(ii) Skin burns: X-rays can cause skin burns if the skin is exposed to a high dose of radiation. The severity of the burn depends on the dose of radiation and the duration of exposure.

(i) Soft X-rays have lower energy levels, while hard X-rays have higher energy level

(ii) Soft X-rays are commonly used in scientific research, such as studying atomic structures and electronic properties while Hard X-rays are more prevalent in medical and industrial applications, like diagnosing fractures, inspecting welds, or examining luggage at airports for security purposes.

(iii) Soft X-rays are more easily absorbed by matter than hard X-rays. As a result, softer X-rays are used to examine lighter elements, while harder X-rays are preferred for studying heavier elements in samples.

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See: NECO Civic Education Answers

NECO Physics Questions and Answers For Practice

The questions below are the NECO 2022 Physics Practice Questions. Go through them and be ready to score high in your NECO 2022 Physics Examination.

1. The equation X 150 62 => Y 150 63 + -1 + energy, represents

A. Alpha decay

B. Beta-decay

C. Gamma decay

D. Photon emission

ANSWER: B (Beta-decay)

2. The ice and steam points of a thermometer are 20mm and 100mm respectively. A temperature of 75 degree Celsius corresponds to Y mm on the thermometer. What is Y?

ANSWER: C (80mm)

3. When a yellow card is observed through a blue glass, the card would appear as

ANSWER: A (Black)

4. In a nuclear plant, the final mass of the products is 6.32×10^-27kg, while the initial mass of the reactant is 6.30×10^-27kg, the energy released in the process is (speed of light in vacuum 3.0×10^8m/s, 1eV = 1.6×10^-19J)

A. 11.25meV

B. 11.25 MJ

D. 12.25meV

ANSWER: A (11.25meV)

5. A 1.5kg stone was thrown vertically upward with an initial velocity of 42m/s, What is the potential energy of the stone at the highest point reached.

6. When two objects P and Q are supplied with the same quantity of heat, the temperature change in p is observed to be twice that of Q. The mass of P is half that of Q. The ratio of the specific heat of P to Q is

ANSWER: C (1:1)

7. The following statements were made by some students describing what happened during the determination of the melting point of solids

1. The temperature of the solid was constant until melting started

2. The temperature of the solid rose until melting started

3. During melting, the temperature was rising

4. During melting, the temperature was constant

5. The temperature continued to rise after all the solid had melted.

6. The temperature stopped rising after all the solid had melted. Which of the following gives correct statements in the right order?

A. 2, 4 and 5

B. 2, 3 and 6

C. 1, 3 and 6

D. 1, 3 and 5

ANSWER: A (2, 4, and 5)

8. A silver spoon and a wooden spoon are both at room temperature. The silver spoon is cooler to touch because silver

A. has a greater density

B. can be polished

C. is a less absorbent material than wood

D. is a better conductor of heat

ANSWER: D (is a better conductor of heat)

See: NECO Timetable

NECO Physics Essay Questions

1. (a) A student makes a model of an atom. The model contains 24 electrons, 25 protons and 26 neutrons. Some of these particles are inside a nucleus at the centre of the model. (i) Determine the nucleon number (mass number) of the atom. (ii) Explain why the model represents a charged atom. (iii) The student makes a new model of a different isotope of the same element. Describe the nucleus of this new model.

Ans: 1 (a) (i) 51 B1 (ii) more protons than electrons or different number of protons and electrons positive and negative do not cancel. (iii) 25 protons. a different number of neutrons.

2. Fig. 1.1 shows the distance-time graph for two cyclists A and B. They start a 500 m race together but finish the race at different times.

(a) Use Fig. 1.1 to determine (i) the distance between A and B at time t = 20s, (ii) the difference in the time taken by A and B for the race.

(b) Cyclist C starts the race at the same time as A and B and covers the first 200m of the race at a constant speed of 5.0 m/s. He then accelerates and finishes the race at t = 60s. (i) On Fig. 1.1, draw the distance-time graph for cyclist C. (ii) Calculate the average speed of cyclist C for the whole race.

Ans: (a) (i) 60 m (ii) 12s (b) (i) straight line from origin to 200 m at 40s any line straight or curved from (40,200) to (60,500) (ii) s = d/t or 500/60 = 8.3m/s

Neco Physics Objective Sample Questions;

If a satellite travels at a constant speed round the earth in a circular orbit,

1. Which of the quantities in the list below are scalars. (a) acceleration (b) force (c) mass (e) speed.

2. The velocity of the satellite changes, but its speed is constant. State what is meant by velocity…………………….

3. Explain why the velocity changes……………………………

4. Explain what makes this satellite move in an orbit that is circular

Have a Target and Work Towards Actualizing it

You have decided to pass NECO Physics 2023 and I am sure of that. Now, the next thing you should do is set targets.

You have told yourself, “I will score A in Neco Physics 2023”, that’s not all. You need to plan on how to make it happen. Create a timetable and master plan to achieve your goals.

Get the Recommended Textbook on Physics for 2023 NECO Examination

Normally, NECO recommends books for the examination. But apart from NECO English Literature where certain novels are compulsory, you are free to use any good English Language textbook to prepare for NECO 2023 exam.

Some textbooks are more difficult to understand. If you have any topic you are finding difficult to understand, then get a textbook that will simplify the topics and make life better for you.

Do not Skip Physics Examples and Exercise you Will Come Across While Reading:

Many candidates are fond of skipping exercises and even examples while studying textbooks. In fact, we like notebooks so much that we could ask, “can I read my notebook and pass NECO Physics 2023?” Don’t be scared of attempting exercises in Biology. Face the challenges.

Note: The above questions are likely NECO Physics Questions and Answers, not the real questions

If you have any questions about the NECO Physics Questions and Answers 2023 , kindly drop your question in the comment box.

Last Updated on July 27, 2023 by Admin

126 thoughts on “NECO Physics Questions and Answers 2023/2024 | Essay and Objective”

Please sir I need today answer

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Pls can I know what neco will set for chemistry obj theory and practical

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thank you so much sir for your kindness to us wish you long life and prosperity

Thanks alot pls put the one foe chemistry

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Please Sir i need neco answer physics today

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Please can I get the answers before the examination????

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Have a Target and Work Towards Actualizing it

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