AnswersFL-2003310-Physical Science CRLab: Thermal Energy Transfer

Lab: Thermal Energy Transfer Answers

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7

Identify the properties of transverse and longitudinal waves. Amplitude: Compression: Frequency: Period: Wavelength:

Answers:
Selection 1:both longitudinal and transverse
Selection 2:longitudinal
Selection 3:both longitudinal and transverse
Selection 4:both longitudinal and transverse
Selection 5:both longitudinal and transverse
11

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
12

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.

13

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.
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35

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

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