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Samuels PS Sound
Test Description: Physical Science Sound
Instructions: Answer all questions to get your test result.
1) The unit used to measure sound intensity in a way that reflects how our ears perceive sound.
A
decibel
B
herz
C
doppler
D
bel
2) What type of wave does sound travel as?
A
vertical
B
longitudinal
C
lateral
D
transverse
3) Speeds above the speed of sound is called ______.
A
subsonic
B
infrasonic
C
supersonic
D
presonic
4) The effect of intensity on the way the ear perceives sound is ______.
A
key
B
loudness
C
frequency
D
pitch
5) A loud noise caused by a shock wave is a ______.
A
ionic blast
B
sonic boom
C
superclast boom
D
hypersonic blast
6) The effect of frequency on the way the ear perceives sound is ______.
A
loudness
B
volume
C
amplitude
D
pitch
7) Which part of a sound wave results in high pressure with air molecules bunched up?
A
compression pulse
B
crest
C
trough
D
rarefaction pulse
8) How does sound behave in a vacuum like space?
A
not travel at all
B
travels slower
C
travels quickly
D
travel the same speed as on Earth
9) Who is the scientist that put an alarm in a glass jar to show the effect of a vacuum on sound?
A
Galileo Galilei
B
Sir Isaac Newton
C
Michael Faraday
D
Robert Boyle
10) The change in frequency because of an object's motion is known as:
A
intensity
B
sonic boom
C
siren
D
the Doppler effect
*select an answer for all questions
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