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5
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means 'that can be seen'
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7
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states that the ANGLE of INCIDENCE is equal to the ANGLE OF REFLECTION
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8
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matter that does not transmit any light. You cannot see through this type of ______ objects. Ex: metal, wood, a stack of books.
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9
|
During _____, light travels through an object
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10
|
these waves are used to cook food. Cell phones use this wave to transmit signal.
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11
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objects that transmit light easily
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13
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this wave is used to send TV and radio signals
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14
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these waves warm the earth. The military use infrared binoculars to search for body heat.
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15
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all the colors mixed together, humans can see this.
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16
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____ happens when light waves bounce off matter
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18
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light passes through a material less readily. Ex: frosted window, wax paper
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20
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this wave causes sunburn but it is also used to kill bacteria on food and surgical tools
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