Review on Sound

The decibel is used to measure a sound’s.

• pitch

• loudness

• frequency

A loud sound is produced by a sound wave with an amplitude

• low

• high

Tags

NGSS.MS-PS4-1

Sound waves are produced by in matter.

• echoes

• vibrations

• changes in state

Tags

NGSS.MS-PS4-1

A sound wave is a series of compressions and ___?____.

• echoes

• troughs

• rarefactions

Tags

NGSS.MS-PS4-1

collects and channels sound waves into the ear

• eardrum

• middle ear bones

• outer ear function

Tags

NGSS.MS-PS4-1

hammer, anvil, stirrup

• eardrum

• middle ear bones

• outer ear function

The membrane that picks up vibrations from the ear canal.

• eardrum

• middle ear bones

• outer ear function

amplifies sound

• middle ear function

• cochlea

• outer ear function

converts vibrations to nerve signals

• middle ear function

• cochlea

• outer ear function

A string vibrates at a frequency that is lower than the human ear can detect.

• True

• False