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Ch 16
Test Description: Sound and light
Instructions: Answer all questions to get your test result.
1) light demonstrates particle characteristics when it
A
all of the answers are correct
B
passes though a narrow opening
C
knocks electrons off metal surfaces
D
forms standing waves
2) as the frequency of light wave increases
A
the energy stays the same
B
the energy decreases
C
the wavelength increases
D
the energy increases
3) the law of reflection says that the angle of incidence is ____ the angle of reflection
A
none of the answers are correct
B
greater than
C
equal to
D
less than
4) a virtual image
A
diffuses light
B
appears behind the mirros
C
reflects light
D
appears in front of a mirros
5) In addition to reflecting some light, every object
A
transmits radio waves
B
produces vibrations
C
None of the answers are correct
D
absorbs some light
6) a mirage is caused by
A
diverging light
B
refracting light
C
dispersing light
D
converging light
7) a prism separates white light into different colors through a process called
A
magnification
B
convergence
C
dispersion
D
divergence
8) which of these affects loudness of a sound
A
frequency of the waves
B
pitch of the sound
C
speed of the sound
D
intensity of the waves
9) to hear which of the following takes place
A
all of the answers are correct
B
ear amplifies vibrtations
C
ear transmits signal to the brain
D
ear senses vibrations in the air
10) when light rays reflect off a rough surface they
A
scatter in many different direc tions
B
decrease their speed and change their angle
C
diverge toward the normal line
D
converge toward the normal line
*select an answer for all questions
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