Part A Modified True/False
Indicate whether the sentence or statement is true or
false. If false, change the identified word or phrase to make the sentence or statement
true.
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1.
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Light is a form of matter. ____________________
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2.
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Translucent objects block all light. ____________________
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3.
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A slow long wave has a higher frequency than a fast, short wave.
____________________
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4.
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Gamma rays have the highest frequency and energy.
____________________
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5.
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Of the visible light colours, red light has the highest frequency and
energy. ____________________
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Part B Matching
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Match the following wave characteristics with the descriptions
below. a. | amplitude | d. | crest | b. | frequency | e. | trough | c. | hertz | f. | wavelength |
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6.
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cycles per second
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7.
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the farthest point below the resting point
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8.
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a measure of the amount of energy transferred
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9.
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the distance between two troughs
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10.
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the number of cycles in a period of time
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11.
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the farthest point above the resting point
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Part C Completion
Complete each
sentence or statement.
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12.
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A measure of how much light can pass through a material is called
____________________.
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13.
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We see the colour blue because the blue wavelength is
____________________.
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Part D Multiple Choice
Identify
the letter of the choice that best completes the statement or answers the question.
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14.
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Objects that emit energy in the form of light are called
a. | luminous | c. | incandescent | b. | nonluminous | d. | fluorescent |
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Figure 10.1 
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15.
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In Figure 10.1, which part is the umbra?
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16.
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When asphalt absorbs light some is converted into
a. | electric energy | c. | chemical energy | b. | thermal energy | d. | light energy |
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17.
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We see certain colours because
a. | all light is reflected and none is absorbed | b. | all light is
refracted and none is absorbed | c. | some light is absorbed and some is
reflected | d. | some light is absorbed and some is refracted |
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18.
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We see black when
a. | all light is absorbed | c. | no light is absorbed | b. | some light is absorbed | d. | all light is
reflected |
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19.
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The frequency of a wave is measured in
a. | amplitude | c. | km/s | b. | hertz | d. | seconds |
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20.
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A device that converts light energy into electrical energy is a
a. | dry cell | c. | solar cell | b. | battery | d. | generator |
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Part E Short Answer
Use sentences to answer the following
questions.
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21.
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Incandescent light bulbs are not very efficient. Explain why.
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22.
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Define the terms transmit, reflect, and absorb. Include examples to support your
answers.
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23.
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Explain the relationship between the wavelength and frequency of a wave.
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