What are wavefronts?
2 marks · EasyDescribe two differences between longitudinal and transverse waves.
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Common mistakes: Only gives one difference; Mixes up directions
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Marking points
B1 · 1 mark · States correct difference in direction of vibrations relative to direction of wave travel.
B1 · 1 mark · Gives valid example or another physical difference (e.g. medium required, examples such as sound/light).
Worked solution
1. In transverse waves, the vibrations are perpendicular to the direction of energy transfer; in longitudinal waves, the vibrations are parallel to the direction of energy transfer.
2. Examples: Light waves are transverse; sound waves are longitudinal.