Waves, Sound, and Light

Which row correctly describes light waves?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The diagram shows part of a diffracted wave pattern. Changes are made to the wavelength and to the gap size to produce a semicircular diffracted wave pattern.

Which row produces the required semicircular diffracted wave pattern?

• gap in barrier: larger; wavelength: same

• gap in barrier: larger; wavelength: smaller

• gap in barrier: same; wavelength: larger

• gap in barrier: same; wavelength: smaller

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

The diagram shows white light passing through a prism. Which description of what happens as the light passes into the prism is correct?

• The speed of the red light is less than the speed of the violet light and the red light is the least refracted.

• The speed of the red light is greater than the speed of the violet light and the red light is the least refracted.

• The speed of the violet light is less than the speed of the red light and the violet light is the least refracted.

• The speed of the violet light is greater than the speed of the red light and the violet light is the least refracted.

Tags

NGSS.MS-PS4-2

Which row gives possible values for the speed of sound?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A police car with its siren sounding is stationary in heavy traffic. A pedestrian notices that, although the loudness of the sound produced does not change, the pitch varies.

Which row describes the amplitude and the frequency of the sound?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

Which term is the number of crests of a wave passing a point per second?

• amplitude

• frequency

• speed

• wavelength

Tags

NGSS.HS-PS4-1

White light is dispersed by a prism. Compared with blue light, the red light is

• slowed down less and refracted less.

• slowed down less and refracted more.

• slowed down more and refracted less.

• slowed down more and refracted more.

Tags

NGSS.MS-PS4-2

What is the approximate value for

• 10²

• 10⁴

• 10⁶

• 10⁸

Tags

NGSS.HS-PS4-1

What are the lowest frequency and the highest frequency of the sound that a human being with

normal hearing can hear?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

Ultrasound has a number of uses in engineering and medicine. What is ultrasound not used for?

• cleaning

• pre-natal scanning

• quality control

• sterilizing medical equipment