1
1
A student creates waves in a water tank and places various barriers in their path.
The diagram shows the wavefronts as they approach a barrier placed at an angle of 45° to the
wavefronts.
wavefronts
barrier
water
tank
direction of
travel of
wavefronts
45°
water
On the diagram, draw three wavefronts after they have reflected from the barrier. Draw an arrow
to show the direction of travel of these wavefronts.
[2]
[Total: 2]
2
State the meaning of the term frequency of a wave.
..................................................................................................................................................
..................................................................................................................................................
[2]
[Total: 2]
2
3
The diagram shows a transverse wave.
On the diagram, draw a wave which has half the amplitude and a greater frequency than the wave
shown.
[2]
[Total: 2]
4
A woman tunes her radio to a station broadcasting on 100 MHz.
What does the 100 MHz tell her about the radio wave?
A
its amplitude
B
its frequency
C
its speed
D
its wavelength
[1]
[Total: 1]
3
5
The diagram shows a ray of light incident on the surface of a rectangular glass block at 90° to the
surface.
ray of light
glass block
Which quantities remain unchanged as the light enters the glass block?
A
direction and frequency
B
direction and speed
C
frequency and speed
D
speed and wavelength
[1]
[Total: 1]
6
A ray of light is incident on the surface of a glass block.
normal
direction of
ray of light
air
glass
Which row describes how the speed and the direction of the ray of light change when it enters the
glass?
speed in glass
direction in glass
A
decreases
closer to the normal
B
decreases
further from the normal
C
increases
closer to the normal
D
increases
further from the normal
[1]
[Total: 1]
4
7
A person uses a surfboard to ride every 30th wave crest towards the beach. The wave crest
travels at a speed of 1.6m/s and the distance between each wave crest is 24 m.
How many wave crests does the person surf in one hour?
A
1
B
2
C
8
D
450
[1]
[Total: 1]