The diagram shows a dipper producing circular waves in a ripple tank.

1.   ?    wavelength
2.   ?    speed
3.   ?    frequency
4.   ?    amplitude

The diagram shows a graph of wave motion.

1.   ?    P: amplitude ; Q: period
2.   ?    P: amplitude ; Q: wavelength
3.   ?    P: half the amplitude ; Q: period
4.   ?    P: half the amplitude ; Q: wavelength

A ripple tank is used to study water waves. The diagram shows a top view and a side view of a wave.
A wave crest is marked.

1.   ?    The distance travelled horizontally by a rest in one second.
2.   ?    The distance travelled vertically by a crest in one second.
3.   ?    The number of wave crests passing a point in one second.
4.   ?    The time taken for a crest to make one vibration.

A water wave has a wavelength of 20 cm and a speed of 100 cm/s.
What is the frequency of the wave?

1.   ?    0.2 Hz
2.   ?    5.0 Hz
3.   ?    120 Hz
4.   ?    2000 Hz

The diagram shows the outline of a water wave.

1.   ?    amplitude: 0.6 cm ; wavelength: 10 cm
2.   ?    amplitude: 0.6 cm; wavelength: 20 cm
3.   ?    amplitude: 1.2 cm ; wavelength: 10 cm
4.   ?    amplitude: 1.2 cm ; wavelength: 20 cm

The diagram shows how displacement varies with time as a wave passed a fixed point.

1.   ?    0.25 Hz
2.   ?    0.50 Hz
3.   ?    1.0 Hz
4.   ?    2.0 Hz

A long rope is stretched out on the floor. One end of the rope is then shaken.
The graph shows the rope at a particular moment in time.

1.   ?    0.3 m
2.   ?    0.6 m
3.   ?    0.8 m
4.   ?    1.6 m

The diagram shows a ball floating in a tank of water.

1.   ?    
2.   ?    
3.   ?    
4.   ?    

A water wave has a frequency of 2 Hz and a wavelength of 10 cm.
What is the speed of the wave?

1.   ?    20 cm/s
2.   ?    12 cm/s
3.   ?    5 cm/s
4.   ?    0.2 cm/s

One end of a long spring is moved backwards and forwards to produce a model of wave.

1.   ?    Type of wave: longitudinal; Example: radio wave
2.   ?    Type of wave: longitudinal; Example: sound wave
3.   ?    Type of wave: transverse; Example: radio wave
4.   ?    Type of wave: transverse; Example: sound wave

The diagram shows how, at a given instant, the length of water waves varies with the distance from their starting point.

1.   ?    Amplitude: r ; Wavelength: x
2.   ?    Amplitude: r ; Wavelength: y
3.   ?    Amplitude: s ; Wavelength: x
4.   ?    Amplitude: s ; Wavelength: y

A surf-board moves at 5 m/s on the crest of the wave. The distance between wave crests is 10 m.

What is the frequency of the wave motion?

1.   ?    0.5 Hz
2.   ?    2 Hz
3.   ?    5 Hz
4.   ?    10 Hz

The diagram shows waves travelling on the sea.

1.   ?    P and R
2.   ?    Q and S
3.   ?    Q and T
4.   ?    S and T

The diagram shows how displacement varies with time as a wave passes a fixed point.

1.   ?    0.25 Hz
2.   ?    0.33 Hz
3.   ?    0.50 Hz
4.   ?    1.0 Hz

A VHF radio station broadcasts at a frequency of 90 MHz. The speed of radio waves is 3.0 X 10⁸ m/s.
What is the wavelength of the wave broadcast by the station?

1.   ?    0.30 m
2.   ?    3.3 m
3.   ?    6.0 m
4.   ?    12 X 10¹⁵ m

Below is a graph that shows the profile (outline) of a water wave.

1.   ?    Wavelength: 1.2 cm ; Amplitude: 30 cm
2.   ?    Wavelength: 1.2 cm ; Amplitude: 20 cm
3.   ?    Wavelength: 0.6 cm ; Amplitude: 10 cm
4.   ?    Wavelength: 0.6 cm ; Amplitude: 20 cm

Which diagram shows an example of a longitudinal wave?

1.   ?    
2.   ?    
3.   ?    
4.   ?    

The diagram shows part of a spring that is shaken from side to side to produce a wave.

1.   ?    0.2 s
2.   ?    0.5 s
3.   ?    2.0 s
4.   ?    5.0 s