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Sound waves review Flashcards | StudBud
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Sound waves review
Sound waves review
20 terms
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StudBud Administration
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Review of principals of sound and waves
Flashcards
20 cards
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Practice quiz
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Host live
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Questions
20
Answers
1
An echo is created when...
when sound is absorbed and then re-emitted.
sound bounces off an object and returns to the source.
a sound is very loud.
several waves of the same frequency are generated.
2
Is this pipe open or closed?
closed
open
both
neither
3
A long pipe will produce a ___________ sound than a short pipe
Higher
Lower
Softer
Louder
4
An increase in frequency will...
decrease loudness
increase loudness
decrease pitch
increase pitch
5
What is resonance?
When an increase in amplitude occurs
The frequency of a vibration matches the natural frequency
When an extremely loud noise is used to make another object vibrate.
When an increase in frequency occurs
6
You see the flash before hearing thunder because
light travels faster than sound
Sound travels faster than light
thunder travels through the ground
light waves are bigger than sound waves
7
Sound waves travel through...
the air as radio waves
Physical medium (like air or water)
Everything, including empty space
the air in stereo waves
8
A sound wave is not associated with
A transverse wave
A mechanical wave
A vibration
A longitudinal wave
9
Frequency is a measure of...
Length of waves (peak to peak)
Rate of waves (waves per second)
Wave speed
Size of waves (height)
10
The ability to hear sounds around a corner is due to...
standing waves
wave interference
wave reflections
beat frequencies
11
The length of an object producing sound waves will determine its
Color
Pitch
Size
Loudness
12
Sound travels fastest through...
Liquids
Solids
Same for all
Gases
13
Approaching objects seem to increase in pitch because
Faster sound sources are louder
reverberation
The speed of the wave increases
Sound waves bunch up in front, shortening the wavelength
14
The pitch of an instrument is determined by the instrument's...
power
location
materials
length
15
The picture below represents what harmonic pattern?
Closed end, 3rd harmonic
Closed end, first harmonic
Open end, 2nd harmonic
Open end, 1st harmonic
16
The loudness of a sound is determined by the wave's...
Wavelength
Medium
Frequency
Amplitude
17
When standing waves occur in an air column open at one end and closed at the other...
all harmonics are present
one and half harmonics are presents
only odd harmonics are present
only even harmonics are present
18
What causes a beat frequency pattern?
Two speakers set up to play the identical frequency.
Standing waves form in musical instruments.
When a person turns the volume down and up really quickly.
Two very similar frequencies interfere.
19
Hitting a drum harder will
Increase Amplitude
Decrease Frequency
Decrease Amplitude
Increase Frequency
20
Sound can move through all of the following except
Space
Water
Mud
Helium
