1. The period of an oscillation is the

• A. frequency
• B. wavelength of one oscillation
• C. time to produce one oscillation
• D. amplitude

2. A wave of frequency 2Hz is travelling at a velocity of 40 cms^-1. This means it has a wavelength of

• A. 0.8m
• B. 0.2m
• C. 5m
• D. 20m

3. Simple harmonic motion (SHM) is defined as motion where

• A. the velocity is proportional to the displacement, directed away from the centre of motion
• B. the velocity is proportional to the acceleration, directed towards the centre of motion
• C. the acceleration is proportional to the velocity, directed away from the centre of motion
• D. the acceleration is proportional to the displacement, directed towards the centre of motion

The graphs show a progressive transverse wave at a particular point in time. Points P and Q on the wave are moving in a direction perpendicular to the wave. The wave is moving left to right in the diagram.

4. P and Q are out of phase by (in radians)

• A. π
• B. π /2
• C. π /4
• D. π /8

5. The subsequent motion of the two points will be:

• A. Both points upwards
• B. Both points downwards
• C. P moves up, Q moves down
• D. Q moves up, P moves down

6. Which of the following correctly describes sound and light waves?

7. In a sound wave regions of high pressure are compressions, and regions of low pressure are called

• A. depressions
• B. decompressions
• C. rerefactions
• D. expansions

8. The wavelength of an ultra-violet wave is approximately

• A. 10^-4m
• B. 10^-6m
• C. 10^-8m
• D. 10^-10m

9. A wave of frequency of 10⁸Hz is a

• A. radio wave
• B. infra-red wave
• C. visible light wave
• D. gamma ray

10. A light ray passes from water into glass. The velocity of light in water is 2.30 x 10⁸ ms^-1 and in the glass is 2.00 x 10⁸ ms^-1. The refrective index of the water / glass boundary is

• A. 1.15
• B. 2.00
• C. 2.30
• D. 4.60

11. A light ray is incident on a glass block as shown. The refractive index of the glass/air boundary is 1.5 and the value of sin(30⁰) is 1/2. The value of sin (i) will be

• A. 3
• B. 1.33
• C. 0.5
• D. 0.75

A 4kg mass oscillates on a spring as shown, performing simple harmonic motion (SHM). The amplitude of oscillation is 10cm, and the angular velocity is 5 rad s^-1 .

12. Which of these answers gives the points of maximum velocity and acceleration?

13. The potential energy due to SHM at the centre of oscillation is

• A. 0 J
• B. 0.5 J
• C. 1 J
• D. 5 KJ

14. The total energy of the system is

• A. 5 J
• B. 0.5 J
• C. 1 J
• D. 5 KJ

15. The maximum velocity is

• A. 0.5 ms^-1
• B. 5 ms^-1
• C. 50 ms^-1
• D. 500 ms^-1