Using Sound

Which refers to a method that relies on sound waves and is used by different animal species for navigation, communication, and finding food?

• echolocation

• analog signaling

• infrared detection

• digital location

Four different people are using sound wave technology. Which describes the form of technology most likely being used by each person?

• Ali is using specialized headphones, Megan is using a microphone, Kristoff is using a transmitter, and Jenna is using a radio.

• Ali is using a radio, Megan is using a microphone, Kristoff is using a transmitter, and Jenna is using specialized headphones.

• Ali is using a radio, Megan is using a transmitter, Kristoff is using a microphone, and Jenna is using specialized headphones.

• Ali is using specialized headphones, Megan is using a transmitter, Kristoff is using a microphone, and Jenna is using a radio.

What happens when the sound waves released by a bat hit an object?

• The sound waves are diffused.

• The sound waves are reflected.

• The sound waves are refracted.

• The sound waves are absorbed.

Tags

NGSS.MS-PS4-2

Which statement best describes echolocation in bats?

• Echolocation helps bats find food only.

• Echolocation helps bats find food and avoid flying into obstacles.

• Echolocation helps bats avoid flying into obstacles only.

• Echolocation is not used in bats.

Why do sound waves need a medium to travel?

• They need to bounce off objects.

• They need a medium to carry the vibration.

• They cannot travel in a vacuum.

• Both B and C are correct.

What type of waves are sound waves?

• Transverse waves

• Longitudinal waves

• Surface waves

• Electromagnetic waves

Tags

NGSS.MS-PS4-2

How does the medium affect the speed of sound?

• Sound travels faster in solids than in gases

• Sound travels faster in gases than in solids

• The medium does not affect the speed of sound

• Sound cannot travel through solids

Tags

NGSS.MS-PS4-2

In which medium would sound travel the fastest?

• Air

• Water

• Steel

• Vacuum

Which statement best describes echolocation in dolphins?

• Echolocation helps dolphins find food only.

• Echolocation helps dolphins find food and avoid predators.

• Echolocation helps dolphins avoid predators only.

• Echolocation is not used in dolphins.

Tags

NGSS.MS-LS2-1

Which best describes the process by which ultrasounds images are made?

• Low-frequency sound waves are generated by a machine and refracted off of objects, creating echoes that are processed into images.

• High-frequency sound waves are generated by a machine and refracted off of objects, creating echoes that are processed into images.

• High-frequency sound waves are generated by a machine and reflected off of objects, creating echoes that are processed into images.

• Low-frequency sound waves are generated by a machine and reflected off of objects, creating echoes that are processed into images.

Tags

NGSS.MS-PS4-2