GCSE level Physics exam revision notes on SOUND

INDEX of revision notes on the properties of, experiments with, and uses of SOUND WAVES

Sub-index for the sections on sound waves

This section will answer many questions e.g. Why is sound a longitudinal wave?

Why can't sound travel through a vacuum?

Know that and understand sound waves and some mechanical waves are longitudinal, and cannot travel through a vacuum.

Descriptions of experiments to measure the speed of sound.

What are the uses of ultrasound? 

Why are some earthquake waves the same as sound waves?

These sections include reflection, refraction and diffraction of sound waves, ultrasound uses and infrasound earthquake waves - characteristics explained with diagrams, uses of sound waves

There is some overlap between these 8 pages

1. Introduction to sound waves: longitudinal waves, wave equation calculations

2. Explaining reflection, refraction, diffraction of sound waves with model - diagrams

3. Sound and human hearing and displaying frequencies on a CRO

4. Health and safety issues, hearing frequency ranges, microphone, loudspeaker, ear defenders

5. Echo of sound, calculations, absorption of sound waves, soundproofing

6. Experiments to measure the speed of sound in air and a solid

7. Ultrasound waves - ultrasonic sound sources, its uses and calculations

8. Infrasound waves - from animals and earthquake waves

See also The senses (GCSE biology notes)

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