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