Ch4 L3: Sound

Sound is made when a source of energy forces the matter to _________.

• shake

• vibrate

• move

• stay still

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A back-and-forth motion causing particles to move close together generates a _______.

• rarefaction

• surface wave

• transverse wave

• compression

Tags

NGSS.MS-PS4-1

A rarefaction is generated when particles move ______.

• together

• closer

• under

• apart

High frequency sounds have ______ pitch.

• high

• low

Loudness of waves is measure in ______

• Hertz (Hz)

• Decibels (Db)

• Watts

• Meters/second (m/s)

The ____ of a wave increases with increased energy.

• wavelength

• amplitude

Tags

NGSS.MS-PS4-1

A kind of energy that travels in waves that you hear

• Sound

• Crest

• Light

• Pitch

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Each high point of a sound wave

• wavelength

• amplitude

• crest

• frequency

Tags

NGSS.MS-PS4-1

The number of crests or troughs that pass by over a certain amount of time

• Frequency

• sound

• amplitude

• volume

Each low point of a sound wave

• crest

• frequency

• trough

• acoustics