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Ch 10 - Waves And Sound
Test Description: Mechanical waves
Instructions: Answer all questions to get your test result.
1) Sound is a disturbance that travels through a medium as a
A
standing wave
B
surface wave
C
transverse wave
D
longitudinal wave
2) The pitch of a sound that you hear depends on the wave's
A
speed
B
intensity
C
loudness
D
frequency
3) Which of the following factors determines the loudness of a sound
A
density of the medium
B
amplitude of the sound wave
C
frequency of the sound wave
D
temperature of the medium
4) As the frequency of a wave traveling at a constant speed increases, its _________ decreases
A
wavelength
B
sound
C
resonance
D
speed
5) In a longitudinal wave moving along a spring, areas where the coils are farthest apart are called
A
compressions
B
interference
C
rarefactions
D
depressions
6) The more ________ a wave has, the greater its amplitude.
A
crests
B
energy
C
troughs
D
speed
7) The spreading out of waves after they pass through a narrow opening or around a barrier is called
A
diffraction
B
resonance
C
destructive interference
D
constructive interference
8) When the crests of one wave align with the ____________ of an identical wave, the amplitude of the resulting wave is zero.
A
troughs
B
nodes
C
rest position
D
antinodes
9) The speed of sound in air decreases in _______ temperature.
A
liquid
B
colder
C
hotter
D
solid
10) The law of reflection states that the angle of incidence is _________ the angle of reflection.
A
equal to
B
greater than
C
bends away from
D
less than
*select an answer for all questions
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