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WorksheetsChapter 15 Sound
Total questions: 49
Worksheet time: 32mins
Name
Class
Date
1.
The time needed for an object to complete one full cycle of simple harmonic motion is the ____ .
a)
period
b)
frequency
c)
harmonic
d)
amplitude
2.
Which harmonic occurs in FIGURE 2
a)
The fundamental
b)
The first
c)
The second
d)
The third
3.
A wave has a frequency of 8 Hz and a wavelength of 4 meters. What is the period of the wave?
a)
16 sec
b)
2 m
c)
0.5 sec
d)
0.125 sec
4.
λ = 4 meters
v = 10 m/sec
Determine the frequency.
v = 10 m/sec
Determine the frequency.
a)
14 Hz
b)
40 Hz
c)
0.4 Hz
d)
2.5 Hz
5.
A guitarist strums two strings on a guitar. The first string vibrates more quickly than the second string. What is true about the pitch of the string?
a)
The first string has a higher pitch than the second string
b)
The second string has a higher pitch that the first string.
c)
The first string and the second string have the same pitch.
d)
The pitch of the second string depends on the pitch of the first string.
6.
How are light waves and sound waves similar?
a)
The both are invisible.
b)
They both carry energy.
c)
They both travel in vacuums.
d)
They both are harmful to cells.
7.
Sound travels fastest through what type of mediums?
a)
pond water
b)
cold air
c)
iced tea
d)
wooden desk
8.
Shorter wind instruments have ____________ pitches to their sound.
a)
lower
b)
like
c)
higher
d)
vibrating
9.
Why do shorter wind instruments produce a higher pitch sound?
a)
The shorter chamber creates a longer wavelength and higher frequency.
b)
They have strings.
c)
The shorter chamber creates a shorter wavelength and higher frequency.
d)
The chamber is wider.
10.
Why is sound able to travel faster through a solid than a gas?
a)
Gas molecules are packed tightly.
b)
Sound does not travel faster through a solid than a gas.
c)
Solid molecules are packed tightly.
d)
Gas molecules move slowly.
11.
You will see a flash of lightening before you hear the thunder that goes with it because-
a)
the eye is quicker than the ear
b)
thunder occurs much later than lightening
c)
sound travels faster through the atmosphere than light
d)
light travels faster through the atmosphere than sound
12.
What would happen if you tighten the strings on a guitar?
a)
it would make a low pitch sound
b)
it would make a high pitch sound
c)
it produces a slow vibrations
d)
it produces low frequency
13.
Sound is caused by....
a)
molecules
b)
vibrations
c)
people
d)
space
14.
Sound does not travel in space because
a)
Space is too far away.
b)
There is no matter in space.
c)
Space is the final frontier
d)
Space has planets.
15.
What is frequency?
a)
the number of vibrations per second
b)
how high or low a sound is
c)
the loudness or softness of a sound
d)
the back and forth movement of matter
16.
What medium does sound travel through slowest?
a)
gas
b)
solid
c)
liquid
d)
trees
17.
A sound with a high frequency has a _____ pitch. A sound with a ____ frequency has a low pitch.
a)
high, low
b)
low, high
c)
medium, high
d)
high, medium
18.
A sound that bounces off a surface is called an ________.
a)
loud sound
b)
echo
c)
repeat
d)
quiet sound
19.
Matter that carries sound waves is called a _________
a)
low
b)
high
c)
medium
d)
surface
20.
The ______ of a sound depends on the medium through which it's moving.
a)
pitch
b)
vibration
c)
speed
d)
sound
21.
the number of vibrations per second
a)
vibration
b)
volume
c)
pitch
d)
frequency
22.
how high or low a sound is
a)
frequency
b)
volume
c)
vibration
d)
pitch
23.
The distance between one crest or trough to the next is the ____________________.
a)
Frequency
b)
Wavelength
c)
Amplitude
d)
Sound
24.
The distance from the resting point to the top of the crest is called the _________________.
a)
Frequency
b)
Amplitude
c)
Trough
d)
Volume
25.
Sound waves are ALWAYS what type of wave?
a)
Transverse
b)
Longitudinal
c)
Depends
d)
always different
26.
Choose the word that belongs in the sentence. A sound wave is a type of ______________ wave.
a)
parallel
b)
transverse
c)
longitudinal
d)
perpendicular
27.
In a longitudinal wave, an area of high pressure is called
a)
a crest.
b)
a trough.
c)
a compression.
d)
a rarefaction.
28.
The Doppler Effect is
a)
an apparent shift in pitch as the wave source moves.
b)
when sound gets louder as the source moves closer.
c)
when waves bend because they change speeds in different media.
29.
The speed of sound in 30 degree (celsius) air is most nearly
a)
300m/s.
b)
340m/s.
c)
350m/s.
d)
370m/s.
30.
The characteristic sound of an instrument or voice is called
a)
pitch.
b)
the sound quality.
c)
tone.
d)
timbre.
31.
The phenomenon caused by two different, but very close frequencies is called
a)
interference.
b)
beats.
c)
refraction.
d)
diffraction.
32.
When energy is added to something at its natural vibrating frequency the object will
a)
shatter.
b)
interfere.
c)
resonate.
d)
reflect.
33.
Two instruments play and beats are heard at a frequency of 3 Hz. If one instrument plays with a frequency of 340 Hz, what could the other frequency be?
a)
343 or 337 Hz.
b)
343 or 346 Hz.
c)
337 or 334 Hz.
d)
340 or 343 Hz.
34.
If two tones, 400 and 404 Hz are played together, what is the frequency of the tone heard?
a)
4 Hz.
b)
804 Hz
c)
402 Hz
35.
What is the longest wavelength of a wave made on a 1m long string?
a)
0.5m
b)
1m
c)
2m
d)
4m
36.
What is the longest wavelength of a wave made on a 1m long open pipe?
a)
0.5m
b)
1m
c)
2m
d)
4m
37.
What is the longest wavelength of a wave made on a 1m long closed pipe?
a)
0.5m
b)
1m
c)
2m
d)
4m
38.
A guitar string has a fundamental frequency of 400Hz. What is the frequency of the first overtone?
a)
200 Hz
b)
400 Hz
c)
800 Hz
d)
1200 Hz
39.
If one end of a pipe is closed
a)
all harmonics are present.
b)
only odd harmonics are present.
c)
only even harmonics are present.
d)
no harmonics are present.
40.
If a closed pipe has a fundamental frequency of 200Hz, the first overtone that will be present has a frequency of
a)
200 Hz
b)
400 Hz
c)
600 Hz
d)
800 Hz
41.
A 1m pipe, open on both ends has what fundamental frequency? Speed of sound is 340m/s.
a)
85 Hz
b)
170 Hz
c)
340 Hz
d)
680 Hz
42.
A 1m pipe, closed on one end, has what fundamental frequency? Speed of sound is 340m/s.
a)
85 Hz
b)
170 Hz
c)
340 Hz
d)
680 Hz
43.
The Doppler Effect is a characteristic of sound waves only.
a)
True
b)
False
44.
An increase in air temperature will cause sound to travel
a)
faster.
b)
farther.
c)
slower.
d)
less far.
45.
A sound with a frequency of 500Hz will travel ______ sound with a frequency of 1000Hz.
a)
faster than
b)
slower than
c)
with the same speed as
d)
less far than
46.
Which of the following are characteristics of sound?
a)
mechanical, longitudinal
b)
electromagnetic, longitudinal
c)
longitudinal, transverse
d)
transverse, mechanical
47.
Increasing the energy of a wave increases the wave's ___.
a)
wavelength
b)
frequency
c)
period
d)
amplitude
48.
For a standing wave in an air column that is open on both ends, there must be at least
a)
one half of a wavelength in the column
b)
one full wavelength in the column
c)
3/4 of a wavelength in the column
d)
two full wavelengths in the column
49.
Calculate the speed of sound in 25 degree (celsius) air.
a)
340 m/s
b)
343 m/s
c)
346 m/s
d)
349 m/s
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