Using Sound Answers

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What do ultrasounds use?

A
radio waves
B
ultraviolet waves
C
light waves
D
sound waves
3

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?

A
The generated sound wave will not be able to reflect off of the object.
B
The sound wave will not be generated, so there will be no echoes received.
C
The echoes will be made but will be unable to be received by the machine.
D
The machine can process echoes into images, but with the broken screen, they can't be displayed.
4

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?

A
The generated sound wave will not be able to reflect off of the object.
B
The sound wave will not be generated, so there will be no echoes received.
C
The echoes will be made but will not be able to be received by the machine.
D
The machine can process echoes into images, but with the broken screen, they can't be displayed.
5

Which statement best describes echolocation in bats?

A
Echolocation helps bats find food only.
B
Echolocation helps bats find food and avoid flying into obstacles.
C
Echolocation helps bats avoid flying into obstacles only.
D
Echolocation is not used in bats.
7

Which carries information by changing original sounds into numbers?

A
analog signal
B
digital signal
C
volume
D
frequency
8

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

A
The sound waves are diffused.
B
The sound waves are reflected.
C
The sound waves are refracted.
D
The sound waves are absorbed.
9

Which best describes the way a sound wave is sent through the radio?

A
sound wave → radio wave
B
radio wave → sound wave
C
radio wave → sound wave → electrical signal → sound wave
D
sound wave → electrical signal → radio wave → sound wave
10

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

A
Low-frequency sound waves are generated by a machine and refracted off of objects, creating echoes that are processed into images.
B
High-frequency sound waves are generated by a machine and refracted off of objects, creating echoes that are processed into images.
C
High-frequency sound waves are generated by a machine and reflected off of objects, creating echoes that are processed into images.
D
Low-frequency sound waves are generated by a machine and reflected off of objects, creating echoes that are processed into images.

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Using Sound Answers — MS-Physical Science