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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
Visible light
B
The range of the entire EM waves from radio waves to gamma waves.
C
A thin beam of light
2) Opaque is defined as...
A
Material that reflects light
B
Material that absorbs light without reemission
C
Material that allows light to pass through it
D
Material that refracts light
3) Light waves are made up of...
A
Black
B
Electric waves
C
Both answer 1 and 2
D
Magnetic waves
4) All of the answers are correct about a photon except...
A
An object with a very small mass that travels near the speed of light
B
It's energy (E) is related to the frequency of the radiation in the wave model
C
A particle that only moves that 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
White
C
Green
D
Cyan
6) When red and green light shine on a white sheet, the resulting color is ...
A
Green
B
Yellow
C
Blue
D
Cyan
7) A ray is defined as...
A
Complimentary color
B
Primary color
C
Secondary color
D
Subtractive color
8) Increasing the amplitude of a light wave increases ...
A
None of the above
B
Intensity
C
wavelength
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
Red light is scattered by the water
B
Green/blue light is absorbed
C
Red light is absorbed by the water
*select an answer for all questions
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