Answers26-27 IC Physics 7614BWave Properties

Wave Interactions Answers

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absorbedtransmittedreflectedrefracted

A
absorbed
B
transmitted
C
reflected
D
refracted
2
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What is the purpose of a rearview mirror in a car?

A
The mirror allows the light to be absorbed so the driver will not see any glare.
B
The mirror allows the light to interfere so the light waves combine to form an image.
C
The mirror allows the light to be reflected so the objects behind the car can be seen.
D
The mirror allows the light to be transmitted so the light will not reach the driver's eyes.
3

Which is the best example of the wave phenomenon called transmission?

A
A street is seen through a window.
B
Sound is heard around an open doorway.
C
A coin seems smaller at the bottom of a swimming pool.
D
An image of a tree is seen is on the surface of a smooth lake.
4

Color is a result of the absorption and reflection of light. A shirt appears a color because it reflects that color of light. A shirt appears black when it absorbs all wavelengths of light.

A
The light is transmitted through the shirt, so no color appears.
B
The shirt absorbs the sunlight, so it appears white.
C
All the light is reflected, so the shirt appears white.
D
The sunlight refracts when it hits the shirt, so the shirt appears white.
5

Two wave pulses move toward each other along a rope.

Question illustration
A
A straight line.
Option A
B
A triangular crest.
Option B
C
A rectangular crest.
Option C
D
A triangular trough.
Option D
6

Study the image below.What interaction causes the water to spread as they pass through the rock opening?

Question illustration
A
absorption
B
diffraction
C
reflection
D
refraction
7

If a soundproof door is almost shut but still leaves a small opening, what wave phenomenon is responsible for someone being able to hear sound from the room while standing by the wall to the side of the opening?

A
absorption
B
diffraction
C
reflection
D
refraction
8

In 1940, the Tacoma Narrows Bridge across the Puget Sound collapsed. The bridge was a suspension bridge. The wind blowing through the narrows matched the natural frequency of the bridge. This resulted in a large movement of roadway, which eventually caused the bridge to fail.

A
absorption, because the bridge absorbed all the energy of the wind
B
diffraction, because the wind moved around the bridge, which set the bridge into motion
C
interference, because constructive interference occurred when the wind frequency matched the natural frequency of the bridge
D
interference, because destructive interference occurred when the wind frequency matched the natural frequency of the bridge
9

Sunlight is shown filtering through clouds.What wave phenomenon is responsible for the sunlight shown in this diagram?

Question illustration
A
diffraction, because light is bent around the clouds
B
refraction, because the light bends through the clouds
C
absorption, because the sunlight is absorbed by the clouds
D
transmission, because the sunlight travels through the clouds
10

What best describes the refraction of light rays?

A
light bouncing off of a mirror
B
light bending when it passes through a lens
C
light getting brighter when two waves combine
D
light passing through a clear glass window

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