Transverse waves | Combined science | Quizalize & Oak National Academy

Starter quiz

What is the top of a wave called?

a crest ✓

a trough

the rest position
A water wave with a bigger amplitude is ...

...faster.

...longer.

...shorter.

...taller. ✓
A sound wave is made by an object that is ______.

'vibrating' ✓
How does a rope move when a wave is sent along it, by shaking one end?

it moves forwards with the wave

it moves forwards, but slower than the wave

it moves up and down ✓

it moves backwards and forwards
How does a ball floating on water move as a water wave passes by?

it moves forwards with the wave

it moves forwards, but slower than the wave

it moves up and down ✓

it moves forwards and backwards
What is not transferred forwards with a water wave?

water ✓

an oscillation

energy

How is the amplitude of a wave on a rope measured?

the distance between two wave crests along the rope

half the distance between two wave crests along the rope

the distance from the top of a crest down to the bottom of a trough

half the distance from the top of a crest down to the bottom of a trough ✓
Which arrow shows the displacement of a wave on a rope?

arrow A

arrow B ✓

arrow C
Which arrow shows the wavelength of this wave?

A

B ✓

C
What is the wavelength of this wave?

7 cm

14 cm

1.5 m

3.0 m ✓
What is the amplitude of this wave?

7 cm ✓

14 cm

1.5 m

3 m
What is the displacement of this wave at 9 m along it?

14 cm

7 cm

0 cm ✓

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Displacement at a point of a wave is the distance that the wave medium is from its rest position at that point.
Amplitude is the maximum displacement of a wave (up or down, or side to side).
A displacement-distance graph of a wave is not a picture of the wave.
The distance between two wave crests on a displacement-distance graph is equal to one wavelength.
A positive (or negative) displacement shows part of the wave above (or below) the equilibrium position.

A displacement-distance graph is a picture of a wave, with 1:1 vertical and horizontal scaling.

Interpret and sketch graphs of waves that are compared to pictures of each wave.

Crest - the crest of a wave is the top or peak of the wave.
Trough - the trough of a wave is the lowest point of the wave.
Wavelength - wavelength of a transverse wave is the distance between one wave crest (or trough) and the next.
Amplitude - the amplitude of a wave is the maximum distance that each part of the wave moves from its normal position as a wave passes.
Displacement - the displacement of a wave is the distance that each part of the wave moves from its rest position as a wave passes.