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WorksheetsChapter 9 Test
Total questions: 35
Worksheet time: 2hrs 34mins
Which number on the diagram shows rarefaction?
1
2
3
4
The number of vibrations in a unit of time is called--
pitch
frequency
compression
wavelength
Sound travels best through which form of matter?
Solid
Liquid
Gas
Plasma
The highness and lowness of sound describes which vocabulary word?
wavelength
trough
pitch
frequency
Sound is a type of energy that is transmitted through-
light
heat
electrons
waves
Which of these materials transmits sound fastest?
water in a pool
a metal rod
air in a balloon
empty space
Blowing through a straw will produce a sound. Which straw will make the highest pitch?
The thinnest straw
The thickest straw
Sound is measured in _____________
decibels
crests
waves
EM waves
All sounds are caused by vibrations.
The number of sound wavelengths in a given unit of time is...
vibration
frequency
volume
pitch
This occurs when matter moves back and forth.
frequency
pitch
vibration
volume
Frequency of waves is measured in
Hertz
Decibels
Watts
A rarefaction is generated when particles move
Together
Under
Apart
A back-and-forth motion causing particles to move close together generates a ________.
Rarefaction
Surface wave
Compression
Loudness of waves is measured in
Hertz
Decibels
Watts
What is a machine that changes soundwaves into electrical impulses?
An Ultrasound
EKG machine
an Oscilloscope
A sonar reader
What are the echoes of high-frequency sound that allow us to "see" inside a human body?
a stethoscope
an EKG
a heart monitor
an ultrasound
Most of the sound we hear travels through
air
space
water
timbre
Which term refers to the unique qualities of a sound?
frequency
volume
timbre
pitch
1. What is a sound that has been reflected off of a surface?
Echo
Amplitude
Pitch
1. The distance from the top of one wave to the top of another is ______________.
Amplitude
Wavelength
Pitch
1. The number of vibrations that a sound make in a given amount of time is called______.
Amplitude
Frequency
Sound
What reflects sound best?
A hard smooth surface
A rough uneven surface
Soft white wall
Very hot gas
Do sound waves carry particles of matter with them?
yes
no
People experience the frequency of a sound as what?
a vibration
Its pitch
a sound
