What are wavefronts?

1 mark · Easy

Which of the following is an example of a longitudinal wave?

ALight waveBWater waveCSound waveDWave on a string

› Show answer

Correct option: Sound wave

Common mistakes: Light wave; Water wave

› Show mark scheme and worked solution

Marking points

B1 · 1 mark · Correctly chooses 'Sound wave' as an example of a longitudinal wave.

Worked solution

Sound waves are longitudinal because their oscillations are parallel to the direction of energy transfer.

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