In a longitudinal wave, how do particles oscillate relative to the direction of energy transfer?
Parallel to the direction of energy transfer.
AQA GCSE Combined Science: Trilogy (8464) — Physics — Foundation · 6.6.1.1
Revise AQA GCSE Combined Science: Trilogy (8464) — Physics — Foundation specification point 6.6.1.1, Transverse and longitudinal waves, with free active-recall flashcards. Flip through the set or review every question and answer below.
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In a longitudinal wave, how do particles oscillate relative to the direction of energy transfer?
Parallel to the direction of energy transfer.
How do particles move overall as a longitudinal wave passes through a medium?
They oscillate about their equilibrium positions; the medium as a whole does not need to travel with the wave.
What type of wave is sound in air?
A longitudinal wave.
In a sound wave in air, how do compressions and rarefactions differ in pressure and particle density?
Compressions have higher pressure and particle density than equilibrium; rarefactions have lower pressure and particle density.
How is the direction of vibration related to the direction of propagation in a transverse wave?
The vibration is at right angles to the direction of propagation.
What three types of waves can be modelled as transverse waves?