Sound Technology

The diagram shows a readout from a device that measures sound waves.

How should these waves be described?

• mechanical longitudinal

• compressional electromagnetic

• compressional transverse

• mechanical transverse

Tags

NGSS.MS-PS4-1

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

When sound is produced by something it

• echolocation

• vibrates

• vocal chords

• sonars

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Some animals use this to navigate and hunt

• frequency

• ecolocation

• vibration

• GPS

What is echolocation?

• The way bats fly.

• The noise dolphins make underwater.

• High-frequency sounds

• The food rabbits eat.

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

How does an echo occur?

• sound travels faster than light

• sound bounces off solids

• sound is absorbed by solids

• talking really loud

Tags

NGSS.MS-PS4-2

In echolocation, the animal uses echoes of sounds it produces to collect information about its surroundings.

• True

• False

Tags

NGSS.MS-LS1-8