Lesson 8.2 Wave Interactions Answers

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1
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Which wave interaction is shown by the diagram?

A
absorption
B
diffraction
C
reflection
D
refraction
2
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What did you include in your response? Check all that apply.

A
When waves interact with other waves, interference occurs.
B
When a wave hits an object and bounces off it, reflection occurs.
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⇒ A

Answer:

A

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What type of wave interaction is happening in this image?

A
absorption
B
diffraction
C
reflection
D
transmission
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What type of wave interaction is echolocation?

A
absorption
B
diffraction
C
reflection
D
refraction
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How are refraction and diffraction similar? How are they different? Check all that apply.Refraction and diffraction both involve the bending of waves.Refraction and diffraction both involve the bending of waves through a medium.Refraction and diffraction both involve the bending of waves around objects.Refraction involves the bending of waves through a medium, and diffraction involves the bending of waves around an object.Refraction involves the bending of waves around an object, and diffraction involves the bending of waves through a medium.

A
Refraction and diffraction both involve the bending of waves.
B
Refraction and diffraction both involve the bending of waves through a medium.
C
Refraction and diffraction both involve the bending of waves around objects.
D
Refraction involves the bending of waves through a medium, and diffraction involves the bending of waves around an object.
E
Refraction involves the bending of waves around an object, and diffraction involves the bending of waves through a medium.
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[___]°

Answer:

30

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Charina says that when waves interact with an object, they will interfere with the object, and that when waves interact with other waves, they will reflect off each other. Do you agree with her? Why or why not?

Answer:

I disagree with Charina because she has the concepts reversed. When waves interact with other waves, they interfere with each other (constructive or destructive interference). When waves interact with an object and bounce off of it, they reflect.

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Which part of the wave is changed when there is interference?

A
the amplitude
B
the crest
C
the trough
D
the wavelength
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Does the resulting wave demonstrate destructive interference? Explain your answer.

Answer:

No. The resulting wave has twice the amplitude of either original wave, so the waves combine constructively. Destructive interference would reduce the amplitude or cancel the waves.

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What did you include in your response? Check all that apply.

A
The diagram of the resulting wave does not demonstrate destructive interference.
B
With destructive interference, waves break each other down to form a smaller wave, or cancel each other out, resulting in no wave formation.
C
No wave formation is represented by a horizontal line.
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Which wave interaction is shown by the diagram?

A
absorption
B
diffraction
C
reflection
D
refraction
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What type of wave interaction is happening in this image?

A
absorption
B
diffraction
C
reflection
D
transmission
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What type of wave interaction is echolocation?

A
absorption
B
diffraction
C
reflection
D
refraction

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