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