vibration and waves review ch 25-26. a longitudinal wave is: 1.a wave where the particle oscillation...
TRANSCRIPT
Vibration and Waves Review
Ch 25-26
A longitudinal wave is:
A wave
where th
e partic..
A wave
where th
e parti...
50%50%1. A wave where the particle oscillation is perpendicular to the direction of wave motion
2. A wave where the particle oscillation is parallel to the direction of wave motion
How many nodes and antinodes?
4, 5 5, 8 5, 4 4, 8
25% 25%25%25%
1. 4, 5
2. 5, 8
3. 5, 4
4. 4, 8
Which of the following sources of sound has the shortest
wavelength?
A female so
prano si
nger...
A bass g
uitar a
t 150 H
z
A male voice
at 500 H
z
The rumble of t
hunder a...
0% 0%0%0%
1. A female soprano singer at 2,000 Hz
2. A bass guitar at 150 Hz
3. A male voice at 500 Hz
4. The rumble of thunder at 75 Hz
When waves interference constructively to produce a pattern of light and dark regions they are
Out o
f phase
In phase
Standing w
aves
Cancellin
g one anoth
er
0% 0%0%0%
1. Out of phase
2. In phase
3. Standing waves
4. Cancelling one another
When a distant object approaches you, such as a galaxy in outer
space, you will observe
The
Dopple
r ef..
.
Blu
e sh
ift
Red
shift
Both
1 &
2
Both
1 &
3
20% 20% 20%20%20%1. The Doppler effect
2. Blue shift
3. Red shift
4. Both 1 & 2
5. Both 1 & 3
Leader Board
Two successive crests of a transverse wave are 1.20 m apart. Eight crests
pass a given point every 12.0 s. What is the wave speed?
0.6
67 m
/s
1.8
0 m
/s
0.8
00 m
/s
9.6
0 m
/s
0% 0%0%0%
1. 0.667 m/s
2. 1.80 m/s
3. 0.800 m/s
4. 9.60 m/s
The period of a pendulum may be decreased by
Shorte
ning it
s...
Incr
easi
ng th
e...
Movi
ng its
equ
...
Incr
easi
ng its
...
0% 0%0%0%
1. Shortening its length
2. Increasing the mass of the bob
3. Moving its equilibrium point
4. Increasing its length
If the pendulum completes exactly 12 cycles in 2.0 minutes, what is the frequency of the pendulum?
0.1
0 Hz
0. 1
7 Hz
6.0
Hz
10
Hz
0% 0%0%0%
1. 0.10 Hz
2. 0. 17 Hz
3. 6.0 Hz
4. 10 Hz
The period of this wave is…
2 s
econds
4 s
econds
6 s
econds
0% 0%0%
1. 2 seconds
2. 4 seconds
3. 6 seconds
The amplitude of this wave is…
4.8
met
ers
4.0
met
ers
2.4
met
ers
0% 0%0%
1. 4.8 meters
2. 4.0 meters
3. 2.4 meters
Leader Board
900 John
800 Julia
800 Jillian
800 Austin N
800 Emily Gallagher
800 Zach
700 Sam C
700 Barrett
700 Kyle
700 Merrick
A wave with an amplitude of 0.75 m has the same wavelength as a second wave with an
amplitude of 0.53 m. The two waves interfere. What is the amplitude of the
resultant wave if the interference is constructive?
0.2
2 m
0.5
3 m
0.7
5 m
1.2
8 m
0% 0%0%0%
1. 0.22 m
2. 0.53 m
3. 0.75 m
4. 1.28 m
A total of 5 s passes as a child completes one complete swing on a playground swing. The period of
the swing is
1/5
s 2
0 s
5 s
1 s
0% 0%0%0%
1. 1/5 s
2. 20 s
3. 5 s
4. 1 s
The frequency of a certain pendulum is 0.5 Hz. The period of
this pendulum is
0.2
s 0
.5 s
2 s
5 s
0% 0%0%0%
1. 0.2 s
2. 0.5 s
3. 2 s
4. 5 s
Which of the following factors has the greatest effect on the frequency
of a swinging pendulum?
Fric
tion
Am
plitude
Mas
s
Len
gth
0% 0%0%0%
1. Friction
2. Amplitude
3. Mass
4. Length
If a given pendulum is moved from Earth to a location where the gravitational
acceleration is greater than Earth’s, the frequency of the pendulum’s swing will
Incr
ease
Dec
reas
e
Be
unchan
ged
Var
y with
the
mas
s o.
..
0% 0%0%0%
1. Increase
2. Decrease
3. Be unchanged
4. Vary with the mass of the bob
Leader Board
1200 John
1100 Zach
1000 Julia
1000 Jillian
1000 Sam C
1000 Austin N
1000 Barrett
1000 Kyle
1000 Emily Gallagher
1000 Andy
The material through which a mechanical wave travels is
A m
ediu
m
Em
pty s
pace
Wat
er
Air
0% 0%0%0%
1. A medium
2. Empty space
3. Water
4. Air
Response GridResponse Grid
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The human voice has been shown to be capable of shattering a glass.
This is possible due to…
Resonance
Doppler E
ffect
Inte
rfere
nce
Harm
onics
Timbre
0% 0% 0%0%0%
1. Resonance
2. Doppler Effect
3. Interference
4. Harmonics
5. TimbreResponse GridResponse Grid
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10
When a transverse wave passes through water, water molecules are
displaced
Per
man
ently
in th
e di..
.
Per
man
ently
in a
dire
...
Tem
poraril
y in
the
dir...
Tem
poraril
y in
a d
irec.
..
0% 0%0%0%
1. Permanently in the direction of the wave motion
2. Permanently in a direction perpendicular to the wave
3. Temporarily in the direction of the wave motion
4. Temporarily in a direction perpendicular to the wave
Response GridResponse Grid
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10
You are traveling in a car near by a moving train. The train sounds its whistle, but you fail to hear the Doppler effect. This may be
because…
You are travelin
g away ...
You are travelin
g toward
...
You are travelin
g at the...
You are travelin
g away ...
You are travelin
g toward
...
0% 0% 0%0%0%
1. You are traveling away from the train too fast to detect it
2. You are traveling towards the train too fast to detect it
3. You are traveling at the same speed as the train
4. You are traveling away from the train too slowly to detect it
5. You are traveling towards the train to slowly to detect it
Response GridResponse Grid
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10
The distance between two troughs of a transverse wave is the wave’s
Am
plitude
Wav
elen
gth
Fre
quency
Rar
efac
tion
0% 0%0%0%
1. Amplitude
2. Wavelength
3. Frequency
4. Rarefaction
Response GridResponse Grid
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10
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0 Participant 1
0 Participant 2
0 Participant 3
0 Participant 4
0 Participant 5
Suppose you are dangling your foot in a swimming pool, making ripples (waves) by moving your foot
up and down. What could you do to make the ripples travel faster through the water?
Move
you
r foot u
p a..
Move
you
r foot u
p a..
Move
you
r foot u
p an...
None
of the
abo
ve
0% 0%0%0%
1. Move your foot up and down more frequently
2. Move your foot up and down less frequently
3. Move your foot up and down more strongly
4. None of the above
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A wave is passing through a uniform medium. As the frequency of this wave increases, its wavelength
Dep
ends
on am
plitude
Dec
reas
es
Incr
ease
s
Does
not
chan
ge
0% 0%0%0%
1. Depends on amplitude
2. Decreases
3. Increases
4. Does not change
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10
A ____ wave travels through a medium as a series of
compressions and rarefactions.
Sin
e
Longi
tudin
al
Puls
e
Tra
nsver
se
0% 0%0%0%
1. Sine
2. Longitudinal
3. Pulse
4. Transverse
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10
When two transverse waves traveling through a medium meet and exactly coincide, the resulting
displacement of the medium
Is th
e su
m o
f the
dis
...
Is ze
ro
Is a
lway
s gre
ater
than
...
Is a
lway
s des
truct
ive
0% 0%0%0%
1. Is the sum of the displacements of each wave
2. Is zero
3. Is always greater than the displacement of either wave alone
4. Is always destructiveResponse GridResponse Grid
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When two waves having displacements in opposite
directions meet, ____ occurs.
Com
plete
des
tr...
No in
terfe
renc.
..
Const
ruct
ive
i...
Des
truct
ive
in...
0% 0%0%0%
1. Complete destructive interference
2. No interference
3. Constructive interference
4. Destructive interference
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0 Participant 1
0 Participant 2
0 Participant 3
0 Participant 4
0 Participant 5
A wave pattern on a stretched string appears to be stationary.
This wave pattern is an example of
A lo
ngitu
dinal
wav
e
A n
on-per
iodic
wav
e
A p
ulse
wave
A s
tand
ing w
ave
0% 0%0%0%
1. A longitudinal wave
2. A non-periodic wave
3. A pulse wave
4. A standing wave
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In a standing wave on a vibrating string, a point that appears to
remain stationary is a(n)
Antin
ode
Poin
t of c
onstru
ctiv
e ...
Node
rare
fact
ion
0% 0%0%0%
1. Antinode
2. Point of constructive interference
3. Node
4. rarefactionResponse GridResponse Grid
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An ocean wave has a frequency of 2 Hz and a speed of 20 m/s. What
is the wavelength of this wave?
0.1
m 5
m 1
0 m
40
m
0% 0%0%0%
1. 0.1 m
2. 5 m
3. 10 m
4. 40 m
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10
Two waves meet and interfere constructively. Which one of the
following factors increases?
Per
iod
Fre
quency
Am
plitude
Wav
elen
gth
0% 0%0%0%
1. Period
2. Frequency
3. Amplitude
4. Wavelength
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10
You sit in the audience and listen to a concert band play. Which
instruments sound reaches your ears first, the flute or the trombone?
The
flute
The
trom
bone
They
reac
h your e
ars
..
0% 0%0%
1. The flute
2. The trombone
3. They reach your ears at the same time. Response GridResponse Grid
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0 Participant 1
0 Participant 2
0 Participant 3
0 Participant 4
0 Participant 5
A string is rigidly attached to a post at one end. Several pulses of amplitude 0.15 m sent down the
string are reflected at the post and travel back down the string without a loss of amplitude. What is the amplitude at a point on the string where the
maximum displacement points of two pulses cross? What type of interference is this?
0.3
0 m
; cons
tr...
0.3
0 m
; des
tru...
0.0
0 m
; cons
tr...
0.0
0 m
; des
tru...
0% 0%0%0%
1. 0.30 m; constructive
2. 0.30 m; destructive
3. 0.00 m; constructive
4. 0.00 m; destructiveResponse GridResponse Grid
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A string is attached to a post loosely and free to move. Several pulses of amplitude 0.15 m sent
down the string are reflected at the post and travel back down the string without a loss of amplitude.
What is the amplitude at a point on the string where the maximum displacement points of two pulses cross? What type of interference is this?
0.3
0 m
; cons
truct
ive
0.3
0 m
; des
truct
ive
0.0
0 m
; cons
truct
ive
0.0
0 m
; des
truct
ive
0% 0%0%0%
1. 0.30 m; constructive
2. 0.30 m; destructive
3. 0.00 m; constructive
4. 0.00 m; destructiveResponse GridResponse Grid
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10
What type of wave is a sound wave?
Mech
anical a
nd Transv
erse
Mech
anical a
nd Longitu
...
Electr
omagnetic a
nd Tr...
Electr
omagnetic a
nd Lon...
0% 0%0%0%
1. Mechanical and Transverse
2. Mechanical and Longitudinal
3. Electromagnetic and Transverse
4. Electromagnetic and Longitudinal
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The main factor that determines the speed of a sound wave is…
The amplitude
The frequency
The inte
nsity
The properti
es...
The wave
length
0% 0% 0%0%0%
1. The amplitude
2. The frequency
3. The intensity
4. The properties of the medium
5. The wavelengthResponse GridResponse Grid
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10
Which of the following factors determines the pitch of a sound?
Amplitude
Inte
nsity
Frequency
Phase
Speed
0% 0% 0%0%0%
1. Amplitude
2. Intensity
3. Frequency
4. Phase
5. Speed
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0 Participant 1
0 Participant 2
0 Participant 3
0 Participant 4
0 Participant 5
While driving, you hear a police car siren approaching from behind. If the siren
produces a 1500 Hz sound, you will hear a sound…
Gre
ater t
han 1...
Less
than 1500...
Equal
to 1500 ...
You will
not b...
0% 0%0%0%
1. Greater than 1500 Hz
2. Less than 1500 Hz
3. Equal to 1500 Hz
4. You will not be able to hear this sound
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At room temperature, sound will travel most slowly through which of
the following?
Iron
Wate
r
Aluminum
Mercu
ry
Heliu
m
0% 0% 0%0%0%
1. Iron
2. Water
3. Aluminum
4. Mercury
5. HeliumResponse GridResponse Grid
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An observer waits for an approaching train. The train blows its whistle approaches the station at a constant speed. The frequency
of sound detected by the observer compared to the original whistle will be…
higher lo
wer
Incre
asingly
h...
Incre
asingly
l...
0% 0%0%0%
1. higher
2. lower
3. Increasingly higher
4. Increasingly lowerResponse GridResponse Grid
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Final Leader Board
0 Participant 1
0 Participant 2
0 Participant 3
0 Participant 4
0 Participant 5