Sound Energy

Why can't sound travel through space?

• Space is a vacuum, so there is no medium through which sound can travel.

• Space is not a vacuum, so you can hear sound.

• Space absorbs sounds.

• Space reflects sounds.

the highness or lowness of a sound

• volume

• amplitude

• echo

• pitch

sound that bounces off (reflects) off a surface

• medium

• echo

• vibration

• pitch

Tags

NGSS.MS-PS4-2

Special dog whistles make sounds that people cannot hear. Why can't people hear these sounds from these whistles?

• The frequency is too high.

• The sound is too loud.

• The volume is too soft.

• The frequency is too low.

An object that does not vibrate cannot produce

• sound

• light

• heat

• electricity

Tags

NGSS.MS-PS4-1

What happens when you hear an echo?

• absorption of a sound wave

• reflection of a sound wave

• refraction of a sound wave

• radiation of a sound wave

Tags

NGSS.MS-PS4-2

Through which medium does sound travel fastest?

• solid

• liquid

• gas

Tags

NGSS.MS-PS4-2

Tightly compressed waves means . . .

• low frequency

• loud volume

• high frequency

• soft volume

Waves with a tall amplitude means . . .

• loud volume

• soft volume

• high pitch

• low pitch

Tags

NGSS.MS-PS4-1

A sound's pitch is determined by the frequency of a sound wave.

• True

• False