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