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

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.

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

Mammals are a large group of animals that includes humans, apes, dolphins, bears, bats, cats, and much more. Which statement can be made about this information?

• All mammals use echolocation to find food.

• Some mammals use echolocation to avoid obstacles.

• All mammals use walking as their primary means of transportation.

• Some mammals need to find food to survive.

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

What do ultrasounds use?

• radio waves

• ultraviolet waves

• light waves

• sound waves

Tags

NGSS.MS-PS4-2

An ultrasound tech is trying to identify an object, but the machine is broken and is not sending out the sound wave. Which statement best describes this situation?

• The generated sound wave will not be able to reflect off of the object.

• The sound wave will not be generated, so there will be no echoes received.

• The echoes will be made but will be unable to be received by the machine.

• The machine will not be able to process the received echoes into images.

Tags

NGSS.HS-PS4-5

An ultrasound machine is being used to try to identify potential kidney stones. The machine is working properly and no kidney stones are found.

Which statement best describes this situation?

• The generated sound wave will not be able to reflect off of the object.

• The sound wave will not be generated, so there will be no echoes received.

• The echoes will be made but will not be able to be received by the machine.

• The machine will not be able to process the received echoes into images.

Tags

NGSS.MS-PS4-2

A student took notes in class.

Which would be the best title for these notes?

• Echolocation

• Ultrasound Technology

• Digital Signal

• Analog Signal