Echolocation and Ultrasound

Sound is produced by something...

• echolocation

• vibrates

• vocal chords

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-PS4-1

NGSS.MS-PS4-2

A vibrating object causes this to move back and forth

• air molecules

• gases

• solids

How does an echo occur?

• sound travels faster than light

• sound bounces off solids

• sound is absorbed by solids

Tags

NGSS.MS-PS4-2

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

Echolocation allows an animal to ...

• Climb trees faster

• Fly upside down

• See an "image" of a nearby object

• Find a friend

Dolphins use echolocation to replace what sense?

• Sight

• Hearing

• Taste

• Smell

Most humans can hear ultrasound.

• True

• False