Waec Physics Past Questions For Year 2022
Question 1
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?
- A. S only
- B. Q only
- C. R only
- D. Q and S only
Question 2
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. \(\gamma\)=\(\frac{1}{3} \alpha \)
Question 3
The length of a simple pendulum is increased by a factor of four. By what factor is its period increase?
- A. 0.5\(\pi\)
- B. 2
- C. 2\(\pi\)
- D. 4
Question 4
From the principle of flotation, a body sinks in a fluid until it displace a quantity equal to its own?
- A. density
- B. mass
- C. weight
- D. volume
Question 5
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
