a rapid back and forth movement

• echo

• vibration

• force

• sound

Tags

NGSS.MS-PS4-1

to take in the sound wave

• echo

• reflect

• absorb

• sound

Tags

NGSS.MS-PS4-2

a form of energy you can hear

• volume

• reflect

• echo

• sound

to bounce a sound wave off an object

• volume

• reflect

• echo

• sound

Tags

NGSS.MS-PS4-2

a sound wave that reflects clearly enough to be heard again

• volume

• reflect

• echo

• sound

Tags

NGSS.MS-PS4-2

Select the THREE characteristics of sound:

• volume

• echo

• pitch

• quality

• force

Tags

NGSS.MS-PS4-1

Select the THREE parts of the ear:

• inner ear

• ear wax

• ear drum

• upper ear

• outer ear

Pitch depends on how fast the source of the sound is __________.

• force

• identify

• messages

• vibrating

• weaker

Volume depends on how much ______ is used to make an object vibrate.

• force

• identify

• messages

• quieter

• weaker

Sound waves spread out as they move farther away from the _______ of their vibrations.

• force

• identify

• source

• messages

• weaker