Properties of Waves Answers

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1
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Which wave, A or B, has lower energy?

A
A, because it has a higher amplitude
B
B, because it has a higher amplitude
C
A, because it has a lower amplitude
D
B, because it has a lower amplitude
2
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What did you include in your response? Check all that apply.

A
Sound travels faster in a warm room.
B
The temperature of a medium affects the speed of a wave.
C
The higher the temperature, the more bumping between the particles of the medium and the more instances of energy transfer.
3

1✔ 234

A
1
B
2
C
3
D
4
75094

Amplitude:

A
longitudinal
B
transverse
C
both longitudinal and transverse
75095

Compression:

A
longitudinal
B
transverse
C
both longitudinal and transverse
75096

Frequency:

A
longitudinal
B
transverse
C
both longitudinal and transverse
75097

Period:

A
longitudinal
B
transverse
C
both longitudinal and transverse
75099

Tara prepared a report to show how the amplitude of waves affects the energy of waves. Is her graphical representation correct? Why or why not?

Answer:

Tara's graphical representation is incorrect. The relationship between the amplitude of a wave and its energy is not linear; instead, the energy of a wave is proportional to the square of its amplitude (E ∝ A²). Therefore, her graph should show an exponential or parabolic curve rather than a straight line to accurately represent how energy increases as amplitude increases.

75100

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

A
As the amplitude of a wave increases, the energy it carries also increases.
B
The graph shows that as the amplitude of a wave increases, the energy it carries decreases.
C
The graph shown does not correctly represent the relationship between amplitude and energy.
75103

What order shows increasing frequency for gamma rays, microwaves, visible light, and X-rays?

A
gamma rays, X-rays, visible light, microwaves
B
microwaves, visible light, X-rays, gamma rays
C
visible light, gamma rays, microwaves, X-rays
D
X-rays, microwaves, gamma rays, visible light
75105

Does sound travel faster in a warm room or a cold room? Explain your answer.

Answer:

Sound travels faster in a warm room. This is because higher temperatures cause the air particles to move faster and collide more often, which increases the speed of energy transfer through the medium.

75106

12✔ 34

Answer not available
75107

123✔ 4

Answer not available
75108

Order the waves from shortest wavelength (1) to longest wavelength (4).

Answers:
Gamma rays::1
Microwaves::3
Radio::4
Visible light::2
75109

Identify the properties of transverse and longitudinal waves.

Answers:
Amplitude::both longitudinal and transverse
Compression::longitudinal
Frequency::both longitudinal and transverse
Period::both longitudinal and transverse
Wavelength::both longitudinal and transverse
75110

✔ longitudinaltransverseboth longitudinal and transverse

A
✔ longitudinal
B
transverse
C
both longitudinal and transverse

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