Sound speed order: "Sounds Go Louder Solidly" — Gas (slowest), Liquid, Solid (fastest). Or remember: denser and more rigid = faster.
Sound wave trace — what changes what:
- Amplitude = how tAll the wave is = how Loud (A and L both go together)
- Frequency = how Frequently packed the waves are = Pitch (F and P both go together)
Echo distance formula: "Half the time, all the distance" — divide the total time by 2, THEN multiply by speed.
This memory aid covers Memory Aid within Sound Waves for GCSE Physics. Revise Sound Waves in Waves for GCSE Physics with 16 exam-style questions and 15 flashcards. Use this page as part of a wider topic revision path rather than treating it as an isolated fact. It is section 9 of 13 in this topic. Use it for quick recall, then test yourself straight afterwards so the memory aid becomes usable in an answer.
Practice questions for Sound Waves
What type of wave is sound?
Describe how a sound wave is produced and how energy is transferred by a longitudinal wave.