Sound is produced by something...

• echolocation

• vibrates

• vocal chords

Tags

NGSS.MS-PS4-1

The human perception of how much energy a sound wave carries

• frequency

• loudness

• distance

Tags

NGSS.MS-PS4-1

Some animals use this to navigate and hunt

• frequency

• ecolocation

• vibration

Sound needs a ____ to travel through

• frequency

• medium

• echolocation

• small

Tags

NGSS.MS-PS4-2

The ___ energy a sound wave has the ____ the sound

• more, softer

• less, louder

• less, softer

Tags

NGSS.MS-PS4-1

A vibrating object causes this to move back and forth

• air molecules

• gases

• solids

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

How does an echo occur?

• sound travels faster than light

• sound bounces off solids

• sound is absorbed by solids

Tags

NGSS.MS-PS4-2

A sound wave produced by a lower-pitched instrument has a low ___

• distance

• echolocation

• loudness

• frequency

The diagram shows a cartoon of a sound wave produced while a student is speaking.

What happens to the sound wave when the student speaks louder?

• The amplitude increases

• the wavelength will double

• the speed will increase

• the amplitude will decrease

Tags

NGSS.MS-PS4-1

The diagram shows a research vessel using sonar to map the ocean floor.

Upon which basic behavior of sound waves does this technology depend?

• absorption

• compression

• reflection

• refraction

Tags

NGSS.MS-PS4-2