KS3 - Sound Waves

volume

the loudness of a sound

pitch

how high or low a note is​

vibration

a repeated back and forth movement

amplitude

the size of a vibration, i.e. how far an object vibrates​

frequency

the number of vibrations that occur every second

particle

What solids, liquids and gases are made up from.​

vibrate

To regularly and repeatedly move back and forth.​

scientific model

Any way of accurately representing, picturing or imagining a scientific idea.

wave

A disturbance that travels, like a ripple on water.​

sound wave

A ‘pulse’ that travels through a material caused by the vibrations of particles.​

medium

The material that sound is travelling through that is set vibrating.​

vacuum

An area of space with no matter present (that contains no particles).