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WorksheetsWaves and Sound
Total questions: 46
Worksheet time: 23mins
Name
Class
Date
1.
The quietest sound human beings can hear is
a)
0dB
b)
the threshold of hearing
c)
1x10-12W/m2
d)
All of these
2.
The matter through which a mechanical wave travels is the
a)
crest
b)
medium
c)
compression
d)
timbre
3.
The sound level at which our ears feel pain is
a)
0dB
b)
90dB
c)
120dB
d)
20000Hz
4.
All waves carry
a)
sound
b)
light
c)
water
d)
energy
5.
The point at which a medium would rest if there were no disturbance is
a)
crest
b)
trough
c)
line of equilibrium
d)
wavelength
6.
The top of a transverse wave is the
a)
crest
b)
trough
c)
line of equilibrium
d)
wavelength
7.
The bottom of a transverse wave is the
a)
crest
b)
trough
c)
line of equilibrium
d)
wavelength
8.
The distance from one point on a wave to the identical point on the next wave is
a)
crest
b)
trough
c)
line of equilibrium
d)
wavelength
9.
The type of wave in which the medium moves at a right angle to the wave motion is
a)
transverse
b)
longitudinal
c)
electromagnetic
d)
timbre
10.
The type of wave in which the medium moves parallel to the wave motion is
a)
transverse
b)
longitudinal
c)
electromagnetic
d)
timbre
11.
The type of wave that doesn't require a medium is
a)
transverse
b)
longitudinal
c)
electromagnetic
d)
timbre
12.
The amount of energy carried in a wave is measured by...
a)
Amplitude
b)
Wave length
c)
Velocity
d)
Frequency
13.
The frequency/wavelength of a sound wave determines our perception of
a)
loudness
b)
pitch
c)
timbre
d)
medium
14.
The amplitude of a sound wave determines our perception of
a)
loudness
b)
pitch
c)
timbre
d)
medium
15.
The shape of a sound wave determines our perception of
a)
loudness
b)
pitch
c)
timbre
d)
medium
16.
Which of the following instruments STARTS its sound by vibrating a reed?
a)
flute
b)
drums
c)
saxophone
d)
piano
17.
Which of the following instruments STARTS its sound by vibrating a string?
a)
flute
b)
drums
c)
saxophone
d)
piano
18.
Which of the following instruments STARTS its sound by vibrating a membrane?
a)
flute
b)
drums
c)
saxophone
d)
piano
19.
Which of the following instruments STARTS its sound by vibrating an air column?
a)
flute
b)
drums
c)
saxophone
d)
piano
20.
Which method of sound production does a violin use?
a)
Vibration of a reed
b)
Vibration of a string
c)
Vibration of a membrane
d)
Vibration of an air column
21.
If a disturbance happens only once in a medium, the result is a
a)
transverse wave
b)
electromagnetic wave
c)
compression wave
d)
pulse
22.
When a wave bounces off of a surface, the behavior is called
a)
rectilinear propagation
b)
reflection
c)
refraction
d)
diffraction
23.
When a wave bends around a barrier, the behavior is called
a)
rectilinear propagation
b)
reflection
c)
refraction
d)
diffraction
24.
When a wave bends as a result of entering a new medium, the behavior is called
a)
rectilinear propagation
b)
reflection
c)
refraction
d)
diffraction
25.
When a wave travels in a straight line, the behavior is called
a)
rectilinear propagation
b)
constructive interference
c)
refraction
d)
destructive interference
26.
When two of the same wave parts (e.g. two crests) meet, they exhibit which wave behavior?
a)
rectilinear propagation
b)
constructive interference
c)
refraction
d)
destructive interference
27.
When two of the same wave parts (e.g. two crests) meet, they
a)
make a wave with a smaller amplitude
b)
make a wave with a larger amplitude
c)
make a wave with a smaller wavelength
d)
make a wave with a larger wavelength
28.
When two of the opposite wave parts (e.g. a crest and a trough) meet, they
a)
make a wave with a smaller amplitude
b)
make a wave with a larger amplitude
c)
make a wave with a smaller wavelength
d)
make a wave with a larger wavelength
29.
A sound below 20Hz is
a)
ultrasonic
b)
infrasonic
c)
loud
d)
high pitched
30.
A sound is ultrasonic if it is
a)
above 20000Hz
b)
faster than the speed of sound
c)
loud
d)
low pitched
31.
An airplane is supersonic if it
a)
produces sounds above 20000Hz
b)
flies faster than the speed of sound
c)
flies slower than the speed of sound
d)
none of these
32.
When an ambulance goes by, the siren sounds high as it approaches and deep as it goes away. This is the
a)
Resonant effect
b)
Supersonic effect
c)
Ultrasonic effect
d)
Doppler effect
33.
If something is made to vibrate at its natural frequency, it is called
a)
the Dopper effect
b)
Rarefaction
c)
Resonance
d)
Reflection
34.
In a transverse wave, the distance from the line of equilibrium to the crest or trough is the
a)
wavelength
b)
amplitude
c)
compression
d)
rarefaction
35.
In a longitudinal wave, the part where the matter's pressure (density) is highest is
a)
crest
b)
trough
c)
compression
d)
rarefaction
36.
In a longitudinal wave, the part where the matter's pressure (density) is lowest is
a)
crest
b)
trough
c)
compression
d)
rarefaction
37.
A wave with a long wavelength has
a)
higher frequency
b)
lower frequency
c)
higher amplitude
d)
lower amplitude
38.
Which of the following is caused by refraction?
a)
an echo
b)
a rainbow
c)
being able to hear a sound around the corner
d)
all of these
39.
Which of the following is caused by diffraction?
a)
an echo
b)
a rainbow
c)
being able to hear a sound around the corner
d)
all of these
40.
Which of the following is caused by reflection?
a)
an echo
b)
a rainbow
c)
being able to hear a sound around the corner
d)
all of these
41.
In the ear, which part vibrates first
a)
eardrum
b)
ossicles
c)
auditory nerve
d)
cochlea
42.
The fluid filled structure in the ear is the
a)
eardrum
b)
ossicles
c)
cochlea
d)
vestibular nerve
43.
The part of the ear that changes mechanical energy (vibrations) to electrical signals is the
a)
eardrum
b)
ossicles
c)
hair cells
d)
auditory nerve
44.
The part of the ear that carries electrical signals to the brain is
a)
auditory nerve
b)
optic nerve
c)
ear canal
d)
eustachian tube
45.
Sound waves are
a)
transverse waves
b)
longitudinal waves
c)
electromagnetic waves
d)
not waves
46.
The sound made by an object flying AT the speed of sound is
a)
the Doppler effect
b)
a sonic boom
c)
an electromagnetic pulse
d)
timbre
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