a longitudinal wave is:
DESCRIPTION
A longitudinal wave is:. A wave where the oscillation is perpendicular to the direction of motion A wave where the oscillation is in the same direction as the direction of motion. How many nodes and antinodes?. 4, 5 5, 8 5, 4 4, 8. - PowerPoint PPT PresentationTRANSCRIPT
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A longitudinal wave is:
A w
ave
where
the
osci..
.
A w
ave
where
the
osci..
.
92%
8%
1. A wave where the oscillation is perpendicular to the direction of motion
2. A wave where the oscillation is in the same direction as the direction of motion
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How many nodes and antinodes?
4, 5
5, 8
5, 4
4, 8
0%8%
92%
0%
1. 4, 5
2. 5, 8
3. 5, 4
4. 4, 8
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If the amplitude is twice as big, which of the following is true of a
pendulum?
The
pendu
lum
swin
..
Its
perio
d is
twic
e as
...
Its
freque
ncy is
twic
e...
It m
ust h
ave
twic
e th
...
68%
0%
12%20%
1. The pendulum swings twice as far away from the center
2. Its period is twice as long
3. Its frequency is twice as high
4. It must have twice the mass
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In any system in simple harmonic motion, the restoring force acting on the mass in
the system is proportional to
Dis
place
men
t
The
leng
th o
f a p
en...
The
mas
s
freq
uency
92%
0%8%
0%
1. Displacement
2. The length of a pendulum
3. The mass
4. frequency
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Which of the following sources of sound has the shortest
wavelength?
A fe
mal
e so
prano s
in...
A b
ass
guitar a
t 150
Hz
A m
ale
voic
e at
500
Hz
The
rum
ble
of thun
der...
77%
23%
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
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Leader Board
500 Sarah K
500 David B
500 Dmitriy D
500 Vanessa C
500 Kelley G
500 Andrew K
500 Adam K
500 Brandon W
500 Paige H
500 Kelsey S
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In an oscillating mass-spring system, the velocity of the mass is
greatest when the mass is
At t
he poin
t of m
axim
..
Hal
fway
bet
wee
n the.
..
At a
poin
t wher
e ac
ce...
At t
he eq
uilibriu
m p
oint
20%
64%
4%12%
1. At the point of maximum displacement
2. Halfway between the equilibrium point and maximum displacement
3. At a point where acceleration is greatest
4. At the equilibrium point
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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%4%
56%
40%1. 0.667 m/s
2. 1.80 m/s
3. 0.800 m/s
4. 9.60 m/s
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The period of a pendulum may be decreased by
Shorte
ning it
s le
ngth
Incr
easi
ng th
e m
ass
o...
Movi
ng its
equ
ilibr
iu...
Dec
reas
ing th
e m
ass
..
91%
0%4%4%
1. Shortening its length
2. Increasing the mass of the bob
3. Moving its equilibrium point
4. Decreasing the mass of the bob
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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
54%
8%
17%21%
1. 0.10 Hz
2. 0. 17 Hz
3. 6.0 Hz
4. 10 Hz
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As the swinging bob of a pendulum moves farther from its equilibrium position, the
pendulum’s _________ increases
Fre
quency
Mas
s
Res
torin
g forc
e
Len
gth
4% 4%
88%
4%
1. Frequency
2. Mass
3. Restoring force
4. Length
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Leader Board
1000 David B
1000 Dmitriy D
1000 Adam K
1000 Cody S
900 Caroline B
900 Andrew K
900 Kelsey S
800 Sarah K
800 Vanessa C
800 Brandon W
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The period of this wave is…
2 s
econds
4 s
econds
6 s
econds
0%8%
92%
1. 2 seconds
2. 4 seconds
3. 6 seconds
A
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The amplitude of this wave is…
4.8
met
ers
4.0
met
ers
2.4
met
ers
0%
100%
0%
1. 4.8 meters
2. 4.0 meters
3. 2.4 meters
A
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The GPE of the bob of a swinging pendulum is at its maximum when
the bob is at
Max
imum
dis
plac
emen
t
The
equili
brium
poi
nt
The
cente
r of i
ts s
win
g
Min
imum
dis
place
men
t
92%
4%4%0%
1. Maximum displacement
2. The equilibrium point
3. The center of its swing
4. Minimum displacement
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In a system in simple harmonic motion, the amplitude depends on
Fre
quency
Wav
elen
gth
The
positio
n o...
Ener
gy of t
he ...
24%
60%
12%
4%
1. Frequency
2. Wavelength
3. The position of the equilibrium point
4. Energy of the system
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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%
100%
0%0%
1. 0.22 m
2. 0.53 m
3. 0.75 m
4. 1.28 m
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Leader Board
1500 David B
1500 Cody S
1400 Dmitriy D
1400 Caroline B
1400 Andrew K
1400 Adam K
1300 Brandon W
1300 Paige H
1300 Carli M
1300 Kelsey S
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A slinky is stretched to a length of 7 m. All of the following standing wave wavelengths are possible
except…
21
m 1
4 m
7 m
3.5
m
68%
18%
9%5%
1. 21 m
2. 14 m
3. 7 m
4. 3.5 m
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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
10
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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
10
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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
10
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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
10
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Leader Board
2000 Mitch R
1900 Deanna F
1900 Ryan E
1800 Mitch M
1800 Adam V
1800 Navtaj S
1800 Miles M
1700 Kristen H
1700 Jessica B
1700 Tyler D
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You have constructed an oscillating mass-spring system for an experiment.
In order to increase the frequency of the system, you could
Dec
reas
e th
e in
itial
d...
Use
a g
reat
er m
ass
Use
a s
pring
with a
h...
Incr
ease
the
perio
d o...
0% 0%0%0%
1. Decrease the initial displacement
2. Use a greater mass
3. Use a spring with a higher spring constant
4. Increase the period of oscillation
10
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A wave with an amplitude of 0.75 m has the same wavelength as a second wave with an
amplitude of 0.53 m. If the two waves destructively interfere, what is the amplitude
of the resultant wave?
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
10
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If the length of a pendulum gets longer, the period of the pendulum:
Get
s lo
nger
Get
s sh
orter
Sta
ys th
e sa
me
Not e
nough in
form
atio
n
0% 0%0%0%
1. Gets longer
2. Gets shorter
3. Stays the same
4. Not enough information
10
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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
10
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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
10
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0 Participant 5
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A wave that is produced by a single motion that does not repeat is a
________.
Tra
nsver
se w
av...
Contin
uous w
av...
Puls
e
Com
press
ion
0% 0%0%0%
1. Transverse wave
2. Continuous wave
3. Pulse
4. Compression
10
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The distance between two successive 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
10
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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 above10
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When a wave on a rope strikes a free boundary, the wave is
Ref
lect
ed a
nd in
verte
d
Ref
lect
ed b
ut n
ot in.
..
Not r
efle
ctio
n
abso
rbed
0% 0%0%0%
1. Reflected and inverted
2. Reflected but not inverted
3. Not reflection
4. absorbed
10
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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
10
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If the amplitude of a mechanical wave is tripled, the rate of energy transfer of the wave is _____ .
Incr
ease
d by
a...
Dec
reas
ed b
y a.
..
Incr
ease
d by
a...
Dec
reas
ed b
y a.
..
0% 0%0%0%
1. Increased by a factor of 9
2. Decreased by a factor of 9
3. Increased by a factor of 3
4. Decreased by a factor of 3
10
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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
10
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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 destructive10
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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
10
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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
10
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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. rarefaction
10
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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
10
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Two waves meet and interfere constructively. Which one of the
following factors increases?
Per
iod
Fre
quency
Wav
elen
gth
None
of the
ab.
..
0% 0%0%0%
1. Period
2. Frequency
3. Wavelength
4. None of the above
10
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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.
10
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If a 48 kg mass oscillates on a spring with a spring constant of 12
N/m, what is the period of the oscillation?
0% 0%0%0%
1. 8π seconds
2. 4π seconds
3. π seconds
4. π/2 seconds
10
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A certain oscillating mass-spring system has a period of 1.2 s with a 1.0 kg mass. What
will the period be when a 4.0 kg mass is substituted for the 1.0 kg mass?
4.8
s 2
.4 s
0.6
s 0
.3 s
0% 0%0%0%
1. 4.8 s
2. 2.4 s
3. 0.6 s
4. 0.3 s
10
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The spring constant in a given oscillating mass-spring system may
be changed by
Incr
easi
ng th
e m
ass
Dec
reas
ing th
e m
ass
Dec
reas
ing th
e in
itial
...
None
of the
abo
ve
0% 0%0%0%
1. Increasing the mass
2. Decreasing the mass
3. Decreasing the initial displacement
4. None of the above
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If the pendulum’s length is 2.00 m and the acceleration due to gravity is 9.80 m/s2, how many complete oscillations does the pendulum
make in 5.00 min?
1.76
21.6
106
239
0% 0%0%0%
1. 1.76
2. 21.6
3. 106
4. 239
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In an oscillating mass-spring system, the maximum compression distance of the spring is a measure
of
Am
plitude
Fre
quency
Per
iod
Equili
brium
0% 0%0%0%
1. Amplitude
2. Frequency
3. Period
4. Equilibrium
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