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Light (EM) Waves
Test Description: Vocabulary and concept review
Instructions: Answer all questions to get your test result.
1) The electromagnetic spectrum is defined as
A
The range of the entire EM waves from radio waves to gamma waves.
B
A thin beam of light
C
Visible light
2) Opaque is defined as...
A
Material that reflects light
B
Material that allows light to pass through it
C
Material that refracts light
D
Material that absorbs light without reemission
3) Light waves are made up of...
A
Magnetic waves
B
Black
C
Electric waves
D
Both answer 1 and 2
4) All of the answers are correct about a photon except...
A
It's energy (E) is related to the frequency of the radiation in the wave model
B
A particle that only moves that the speed of light
C
An object with a very small mass that travels near the speed of light
D
A particle that is massless
5) Red light shines on a red rose. What color are the petals?
A
Red
B
Green
C
White
D
Cyan
6) When red and green light shine on a white sheet, the resulting color is ...
A
Yellow
B
Green
C
Cyan
D
Blue
7) A ray is defined as...
A
Secondary color
B
Primary color
C
Subtractive color
D
Complimentary color
8) Increasing the amplitude of a light wave increases ...
A
wavelength
B
None of the above
C
Intensity
D
Frequency
9) The colors of an object we see is determined by...
A
Frequencies of light incident on the object
B
Frequencies of light absorbed by the object
C
All choices
D
Frequencies of light reflected by the object
10) Ocean water appears green/blue because
A
Green/blue light is absorbed
B
Red light is absorbed by the water
C
Red light is scattered by the water
*select an answer for all questions
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