physics sound

sound

produced by vibrations, longitudinal needs a medium to travel

what does sound transfer..

sound transfers energy without transferring matter

sound can’t travel through a

vacuum because a vacuum has no particles to vibrate.

longitudinal wave

the particles vibrate parallel to the direction the wave travels.

transverse waves (ripples on water)

particles vibrate perpendicular to wave direction, have crests and troughs.

echo

sound reflects off a surface and is heard again separately

reverberation (clapping in a large, empty hall.)

sound reflections overlap with the original sound,making it to linger

Oscilloscope

Displays electrical signals as waveforms. A microphone converts sound into an electrical signal.

Amplitude

Controls loudness, height of wave from middle line

Pitch

How deep a sound is , dependant on frequency of a sound

Heat

A form of energy transferred from low to high temp in an object

How does sound travel through air

As longitudinal waves, particles of air transfer energy with the wave creating regions of compressions and rarefactions