Waec Physics Past Questions For Year 2018
Question 11
The graph of density against temperature for water is correctly illustrated by
- A. I
- B. II
- C. III
- D. IV
Question 12
According to Newton's law of cooling, the heat energy lost per unit area of a body depends on the
I. Surface area
II. Nature of the surface
III. Temperature of the surface
IV. Excess temperature over the surroundings
- A. Surface area
- B. I and II only
- C. II and IV only
- D. I,II and III
- E. I, II and IV
Question 13
An object at rest is said to possess
- A. potential energy
- B. kinetic energy
- C. chemical energy
- D. electrical energy
Question 14
A body is projected with an initial velocity u at angle \(\theta\) to the horizontal. If \(R_{max}\) is the maximum range of the projectile, what does the relation \(\frac{u^{2}}{R_{max}}\) represent?
- A. The vertical distance covered
- B. Acceleration due to gravity
- C. The horizontal distance covered
- D. The acceleration of the body
Question 15
Frequency is measured in
- A. meter per second
- B. seconds
- C. hertz
- D. farad
