a rapid back-and-forth movement

• absorb

• echo

• reflect

• sound

• vibration

to take in the sound wave

• absorb

• echo

• reflect

• sound

• vibration

Tags

NGSS.MS-PS4-2

a form of energy that you can hear

• absorb

• echo

• reflect

• sound

• vibration

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

to bounce a sound wave off an object

• absorb

• echo

• reflect

• sound

• vibration

Tags

NGSS.MS-PS4-2

a sound wave that reflects clearly enough to be heard

• absorb

• echo

• reflect

• sound

• vibration

Tags

NGSS.MS-PS4-2

What are four ways you can man an object vibrate?

• blowing, hitting, plucking, rubbing

• bowing, hiking, plumbing, running

• holding, listening, looking, sitting

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Carpet and ceiling tiles are used in libraries __________ making the room quieter.

• to absorb the sounds

• to reflect the sounds

Tags

NGSS.MS-PS4-2

Sound is caused by a moving object that is...

• sliding

• vibrating

Tags

NGSS.MS-PS4-1

Sound travels in...

• floods

• waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Sound waves move outward from their source in...

• all directions

• some directions