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Home arrow Chapter 23 arrow Chapter Test

Chapter Test

Read the questions carefully and choose the best answer.

This activity contains 28 questions.

Question 1.
We can learn about the universe from studying light emitted from celestial bodies.

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Question 2.
The movement of light energy can be described as a


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Question 3.
The electromagnetic spectrum and the radiant energy best support the movement of light described by


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Question 4.
Light can act like a stream of particles.

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Question 5.
Longer wavelengths correspond to more energetic particles.

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Question 6.
Match the appropriate conditions or light source with the correct light spectra.

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A matching question presents 3 answer choices and 3 items. The answer choices are lettered A through C. The items are numbered 6.1 through 6.3. Screen readers will read the answer choices first. Then each item will be presented along with a select menu for choosing an answer choice. Using the pull-down menus, match each item in the left column to the corresponding item in the right column.
A hot gas, low pressure
B cool gas, low pressure
C incandescent solid
[hint] 
[hint] 
[hint] 
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Question 7.
Blue wavelength is shorter than red wavelength.

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Question 8.
As they are heated from low to high temperature, solid objects will appear to glow in which of the following sequences of color?

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Question 9.
The spectra of most stars are of the dark-line type.

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Question 10.
The spectrum of the Sun includes 60 dark lines.

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Question 11.
The change in wavelength related to an energy source moving away or towards a receiver is explained by the


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Question 12.
When a light source is moving away, the light appears redder than it actually is.

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Question 13.
Optical reflecting telescopes rely on large convex mirrors to gather light.

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Question 14.
Refracting telescopes have the ability to "see" through interstellar dust clouds.

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Question 15.
The distance between the objective lens and the focus of a telescope is called the ____________ of the objective.

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Question 16.
The overall image quality from a telescope depends on which of the following factors?

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Question 17.
The part of a telescope that gathers the light from a distant object is called the


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Question 18.
When several radio telescopes are wired together, the resulting network is called a radio


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Question 19.
Which of the following telescopes has the least interference from Earth's atmosphere?

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Question 20.
Ultraviolet and infrared radiation is best recorded from a star using satellites and equipment "above" the atmosphere.

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Question 21.
Identify the indicated parts and features of the Sun by selecting the correct response.

(Solar interior diagram, Copyright © Prentice Hall, Inc.)

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The letters A through I appear on an image associated with this question.

This question presents 9 items numbered 21.1 through 21.9. Each item is presented with a pulldown menu containing the letters A through I. For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
[hint]
[hint]
[hint]
[hint]
[hint]
[hint]
[hint]
[hint]
[hint]
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Question 22.
Brief explosive solar events are called solar


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Question 23.
During nuclear fusion, some of the matter is converted to energy.

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Question 24.
The primary material from which stars are made is


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Question 25.
The rotational period of the Sun is 11 years.

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Question 26.
The Sun


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Question 27.
The Sun's atmosphere includes the chromosphere and the corona.

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Question 28.
The layer of the solar atmosphere recognized as a thin red rim above the photosphere is called the


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