Sound waves Quiz review gude

Energy Wave

Transfers energy

Sound

Vibrations

Vibrations

something moving rapidly back and fourth

Speaker

Produces sound

Electromagnetic Force

Magnets controlled by electricity

Crest

The top of the sound wave

Trough

The bottom of a sound wave

Wavelength

The length from crest to crest or trough to trough

Amplitude

How loud a sound is

Frequency

The amount of waves in a sound wave (controls the pitch)

Rest line

Shows the sound wave is at rest

Pitch

How high or low a sound is

Echolocation

when sound reflects off of objects back to it’s producer, making it able to locate where the object is

Volume

How loud or quiet something is

Compression Wave

When air particles are bunched up due to sound waves

Wave speed

Frequency

Medium

what transferres energy

Thunder

The sound of lightning

Waves transfer _____ through a medium or empty space.

Energy

A section of a sound wave where the particles are crowded together is called a:

compression.

substance through which a wave can travel is a

medium.

How does a speaker work?

When an electrical signal is sent to it, it tells the magnet to go on and of, causing it to vibrate producing sound.

When you increase the frequency of a transverse wave,

 Wavelength will decrease 

What can these waves travel through

Solids   Liquids   Gases

Draw the sound waves emitted by each of the following ruler lengths.

A longer ruler vibrates more slowly, so has a lower frequency. A shorter ruler vibrates more quickly so has a higher frequency.