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

Tags

NGSS.MS-PS4-2

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.

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

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.

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-PS4-1

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