Duncan AsanaenyiI believe that you’re here because you don’t know the nature of how exams are being set by WAEC. If you don’t, then you’re at the right place.
In this guide, we will talk extensively on WAEC past questions and answers for Physics, show you possible questions that may likely fall into the exams paper in the proceeding year.
Not only that, you’ll be given adequate instructions on how to answer questions on WAEC
Recently, I wrote on two interesting topics WAEC Past Questions and Answers on Civic Education and WAEC Past Questions and Answers on Chemistry , I strongly recommend you to click on the links above and read.
The WAEC past questions and answers are mostly repeated year after year, which is why you have to read this guide carefully till the end and take notice of those questions.
Most times, I hear students giving complains about how hard the questions is, reason behind it is that they failed to study using our guide.
I believe if you’re reading this, you will definitely want to pass your exams with flying colours. See more details on the instructions and guidelines given by WAEC to follow while writing the exams below.
Important Guidelines to follow in your WAEC Examination
There are alot of guidelines and instructions you as a student need to follow. We will bring to light what needs to be done accordingly.
The examination paper is divided into three different parts, which is Part 1, 2 & 3
Part 1 is Objectives. You should expect 50 questions from this section.
Part 2 is the theory section, you should be expecting 10 questions to answer 5 from this section. This section carries the highest point.
Meaning that if you do well with this section and a little of part 1 ..then you’re good to go.
Part 3 is the practical section where you are expected to deliver whatever you learnt during lesson hours
You should also note that the West African Examination Council frowns at cheating. Any candidate who is caught cheating will be sentenced to life imprisonment.
WAEC Physics Objective Questions
The questions you see below are possible questions that might be repeated in this year’s examination.
Endeavor to read this guide to the end carefully with understanding, where possible ask relevant questions and we’ll reply prompt.
SECTION A:
1. The mass of an object can be measured using the following except
A. Spring balance
B. Lever
C. Metre rule
D. Beam balance
2. A load of 80 N extends a spring to 8 cm. When the load is replaced by a cooper block, the extension produced is 10cm. Calculate the weight of the cooper block, assuming that the elastic limit of the spring is not exceeded.
A. 40 N
B. 64 N
C. 100 N
D. 160 N
3. When a projectile is projected with an initial velocity U at an angle ∅ to the horizontal, the horizontal component of it’s velocity is
A. U cos ∅
B. U sin ∅
C. U tan ∅
D. U cot ∅
4. The magnitude of the resultant of two forces inclined at an angle of 30⁰ is
A. Greater than the magnitude of either force
B. Equal to the sum of the magnitude of the two forces
C. Equal to the difference in the magnitudes of the two forces
D. Greater than the sum of the magnitudes of the two forces
5. A uniform metre rule balances horizontally when it is pivoted at the 70 cm mark and a mass of 105g is suspended at the 90cm mark. Calculate the mass of the metre rule.
A. 100.0g
B. 105.0g
C. 135.0g
D. 189.0g
6. Which of the following motions is not simple harmonic?
A. The motion of a particle in a transverse wave
B. The vibrating prongs of a tuning fork
C. A simple pendulum swinging with large angular amplitude
D. The vertical vibrations of a mass at the end of a spring
7. A pendulum clock keeps a wrong time when the room temperature rises substantially. This observation is due to
A. An increase in the period as a result of an increase in the length of the pendulum
B. A decrease in the period due to an increase in the length of the pendulum
C. A increase in the period due to a decrease in the length of the pendulum
D. A decrease in the period due to a decrease in the length of the pendulum
8. Jet and rocket propulsions are based on
A. Newton’s first law of motion
B. Newton’s second law of motion
C. Newton’s third law of motion
D. Principle of moments
9. When the average separation of the molecules of a fixed mass of an ideal gas is increased, there is corresponding average
A. Increase in the rate of collisions
B. Decrease in pressure of the gas
C. Increase in kinetic energy of the gas
D. Decrease in the number of molecules
10. A student pulls a trolley with a horizontal force of 50.0 N through a distance of 1.5 km in 20 minutes. Calculate the average power of the student.
A. 3.8 W
B. 62.5 W
C. 666.7 W
D. 3750.0 W
11. When a bicycle is being ridden uphill, it’s mechanical advantage is
A. Greater than 1
B. Less than 1
C. Equal to 1
D. Equal to it’s V.R
12. The S. I unit of temperature is
A. C
B. F
C. K
D. A
13. Which of the following application is not related to thermal expression?
A. Sagging of telegraph wires
B. Gaps between rails
C. Anomalous expansion of water from 0⁰C to 4⁰C
D. Use of thermostat
14. An aluminum calorimeter without a lid and jacket is placed on a table. Boiling water is then poured into it. Which of the following processes will account for the cooling of the water?
1. Conduction
2. Evaporation
3. Radiation
4. Convection
A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2, 3 and 4
15. The quantity of hear required to raise the temperature of a unit mass of a substance by 1⁰C is known as
A. Specific heat capacity
B. Latent heat of fusion
C. Heat capacity
D. Specific latent heat
16. Optical fibers are based on the principle of
A. Total internal reflection
B. Double refraction
C. Diffraction
D. Interference
17. Which an object is placed 12cm from a converging lens, a real image four times it’s original size is produced. Calculate the focal length of lens
A. 48.0 cm
B. 16.0 cm
C. 9.6 cm
D. 3.0 cm
18. The pitch of a musical note depends on
A. Amplitude
B. Frequency
C. Intensity
D. Quality
19. Two sonomeritre wires, X and Y, have the same length, if the mass per unit length of X is 1/9 that of Y, determine the ratio of the frequency of X to that of Y.
A. 2:3
B. 3:2
C. 1:9
D. 3:1
20. Static electricity is produced by either loss or gain of
A. Electrons
B. Protons
C. Neutrons
D. Atoms
21. An insulated negatively changed rod is held high above the cap of a positively charged electroscope. The rod is slowly moved down towards the cap until it is just above it. The leaves of the electroscope will be observed slowly
A. Collapse completely
B. Collapse and then diverge
C. Attain maximum divergence
D. Diverge and then collapse completely
22. Which of the following methods is the most effective for making a magnet
A. Single touch method
B. Divided touch method
C. Electrical method
D. Hammering in the Earth’s magnetic field
23. Which of the following factors does not increase the strength of an induced emf in a solenoid? The
A. Cross- sectional area of the solenoid
B. Polarity of the magnet facing the solenoid
C. Speed at which the magnet moves
D. Number of turns of the solenoid
24. In the wiring of houses, the switch is connected to the
A. Earth wire
B. Live wire
C. Neutral wire
D. Earth and neutral and wires bridged together
25. A circuit consisting of a resistor R, an inductor L, and a capacitor C in series is connected to an alternating current source. At resonance, the
A. Current is maximum
B. impedence is maximum
C. Current is least
D. Frequency is maximum
Recommended: Mostly Repeated WAEC Past Questions and Answers on General Mathematics
WAEC Physics Theory Questions
Question 1
Define strain.
(b) A rubber band is stretched to twice its original length. Calculate the strain on the rubber band.
Question 2
State three materials used for making optical fibres.
Question 3
(a) List two factors each that affect heat loss by:
(i) radiation;
(ii) convection
(b) State two factors that determine the quantity of heat in a body
(c) Explain the statement: The specific latent heat of vaporization of mercury is 2.72 x 105 J kg -1
(d) A jug of heat capacity 250 JK-1 contains water at 28oC. An electric heater of resistance 35 Ω connected to a 220 V source is used to raise the temperature f the water until it boils at 100oC in 4 minutes. After another 5 minutes, 300 g of water has evaporated. Assuming no heat is lost to the surroundings, calculate the:
(i) mass of water in the jug before heating;
(ii) specific latent heat of vaporization of steam.
[Specific heat capacity of water = 4200 J kg-1 K-1]
Question 4
(a) Define binding energy in an atom.
(b) List three evidences to support the claim that X-rays are electromagnetic waves.
(c) List three peaceful uses of nuclear energy.
(d) Light of wavelength 4.5 x 10-7m is incident on a metal resulting in the emission of photo electrons. If the work function of the metal is 3.0 x 10-19 J, calculate the:
(i) frequency of the incident light;
(ii) energy of the incident light;
(iii) energy of the photoelectrons.
[speed of light = 3.0 x 108 ms-1, h = 6.6 x 10-34 Js]
Question 5
(a) What is an intrinsic semiconductor?
(b) Distinguish between the p-type and n-type semiconductors
…
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OFONIMEH JOHNSON
Mitrobe Staff