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					      A longitudinal wave is:

1. A wave where the oscillation
   is perpendicular to the
                                                                                      94%
   direction of motion
2. A wave where the oscillation
   is in the same direction as                              6%


   the direction of motion




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 How many nodes and antinodes?
1.   4, 5
2.   5, 8
3.   5, 4
4.   4, 8
                                   81%




                       13%
                              6%
                                         0%




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                                         4,
   If the amplitude is twice as big,
  which of the following is true of a
             pendulum?
1. The pendulum swings twice
   as far away from the center
                                                        56%

2. Its period is twice as long
3. Its frequency is twice as high                                        25%
                                                                                     19%


4. It must have twice the mass                                                                        0%




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In any system in simple harmonic motion,
the restoring force acting on the mass in
       the system is proportional to
1.   Displacement
2.   The length of a pendulum                 71%

3.   The mass
4.   frequency                                             14%
                                                                         7% 7%




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 Which of the following sources of
     sound has the shortest
           wavelength?
1. A female soprano singer at
   2,000 Hz                                           100%

2. A bass guitar at 150 Hz
3. A male voice at 500 Hz
4. The rumble of thunder at 75                                         0% 0% 0%




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                 Leader Board
500   Houlahan
500   Fejko
500   Stafford
500   Gallagher
400   Rusk
400   21. Yonkers
400   Longstaff
400   Lambert
400   Ward
400   O'Callaghan
   In an oscillating mass-spring
system, the velocity of the mass is
    greatest when the mass is
1. At the point of maximum
   displacement                                                                                  56%

2. Halfway between the equilibrium
   point and maximum displacement                                       19%
                                                         13%                       13%
3. At a point where acceleration is
   greatest




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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?
                                                           57%

1.   0.667 m/s
2.   1.80 m/s                                   29%

                                     14%
3.   0.800 m/s
                                                                      0%

4.   9.60 m/s


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                                                  0.
 The period of a pendulum may
       be decreased by
1. Shortening its length
2. Increasing the mass of the                         94%

   bob
3. Moving its equilibrium point
                                                                    6%
4. Decreasing the mass of the                                                       0% 0%




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 If the pendulum completes exactly
  12 cycles in 2.0 minutes, what is
   the frequency of the pendulum?
1.   0.10 Hz
2.   0. 17 Hz                  44%

3.   6.0 Hz
                                                 25%
4.   10 Hz                                               19%
                                          13%




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 As the swinging bob of a pendulum moves
  farther from its equilibrium position, the
     pendulum’s _________ increases
1.   Frequency
2.   Mass                                                              75%

3.   Restoring force
4.   Length
                                                                               19%
                                               6%
                                                        0%




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                 Leader Board
900   Stafford
800   Rusk
800   21. Yonkers
800   Houlahan
800   Fejko
800   Lambert
800   Ward
700   Hradisky
700   French
700   Opet
A      The period of this wave is…



                                               88%




    1. 2 seconds
                                    6%                     6%
    2. 4 seconds

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    3. 6 seconds
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A    The amplitude of this wave is…



                                                       100%




    1. 4.8 meters
                                 0%          0%
    2. 4.0 meters

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    3. 2.4 meters
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                                                  2.
 The GPE of the bob of a swinging
 pendulum is at its maximum when
           the bob is at
1.   Maximum displacement
2.   The equilibrium point
                                                     81%

3.   The center of its swing
4.   Minimum displacement
                                                                                               13%
                                                                     6%
                                                                                     0%




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  In a system in simple harmonic
 motion, the amplitude depends on
1. Frequency
2. Wavelength                                                                     69%


3. The position of the
   equilibrium point
                                   19%

4. Energy of the system                          13%
                                                                    0%




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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?                                     94%
1. 0.22 m
2. 0.53 m
3. 0.75 m
                                        6%
4. 1.28 m                                         0%        0%




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                                                                 1.
                  Leader Board
1400   Stafford
1300   Rusk
1300   21. Yonkers
1300   Houlahan
1300   Fejko
1300   Ward
1200   Lambert
1200   Opet
1200   Buzalka
1100   Hradisky
A slinky is stretched to a length of 7
  m. All of the following standing
  wave wavelengths are possible
               except…
                                 57%

1.   21 m
2.   14 m                                              21%
                                                 14%
3.   7m                                     7%


4.   3.5 m

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                                                       5
                            21




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                                                       3.
  A total of 5 s passes as a child
completes one complete swing on
a playground swing. The period of
             the swing is
1.   1/5 s
                                              69%
2.   20 s
3.   5s
                              31%

4.   1s
                                         0%         0%




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                                              5




                                                    1
                                    20
                         1/
   The frequency of a certain
pendulum is 0.5 Hz. The period of
        this pendulum is
1.   0.2 s
2.   0.5 s                                  87%

3.   2s
4.   5s
                                                  13%
                             0%        0%




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                                  0.
 Which of the following factors has
the greatest effect on the frequency
     of a swinging pendulum?
1.   Friction
2.   Amplitude                                           69%


3.   Mass
4.   Length
                                         15%
                                   8%              8%




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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
1.   Increase
2.   Decrease                                      46%
                                          38%
3.   Be unchanged
                                                                  15%
4.   Vary with the mass of the
                                                                                   0%
     bob




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                  Leader Board
1800   Houlahan
1700   Rusk
1700   Fejko
1700   Ward
1700   Stafford
1600   21. Yonkers
1500   Lambert
1400   Gallagher
1400   Buzalka
1300   Hradisky
  You have constructed an oscillating
mass-spring system for an experiment.
 In order to increase the frequency of
        the system, you could
1. Decrease the initial
   displacement
2. Use a greater mass
3. Use a spring with a higher
   spring constant                                                 0% 0% 0% 0%




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4. Increase the period of oscillation



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                                                                                                                10
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?
1.   0.22 m
2.   0.53 m
3.   0.75 m
4.   1.28 m                               0%        0%        0%        0%




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                                                                   1.
                                                                             10
  If the length of a pendulum gets
longer, the period of the pendulum:
1.   Gets longer
2.   Gets shorter
3.   Stays the same
4.   Not enough information
                                           0% 0% 0% 0%




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                                                                                      10
     The material through which a
      mechanical wave travels is
1.   A medium
2.   Empty space
3.   Water
4.   Air
                                     0%      0%       0%   0%




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                                                                10
  When a transverse wave passes
through water, water molecules are
            displaced
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                                              0% 0% 0% 0%




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4. Temporarily in a direction



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   perpendicular to the wave



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                                                                                                                10
              Leader Board
0   Participant 1
0   Participant 2
0   Participant 3
0   Participant 4
0   Participant 5
A wave that is produced by a single
  motion that does not repeat is a
            ________.
1.   Transverse wave
2.   Continuous wave
3.   Pulse
4.   Compression
                                              0%            0%        0%          0%




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    The distance between two
successive troughs of a transverse
       wave is the wave’s
1.   Amplitude
2.   Wavelength
3.   Frequency
4.   Rarefaction
                                  0%          0%           0%            0%




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                                                                              10
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?
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                             0% 0% 0% 0%


   more strongly




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                                                                                                   10
 When a wave on a rope strikes
  a free boundary, the wave is
1.   Reflected and inverted
2.   Reflected but not inverted
3.   Not reflection
4.   absorbed
                                                             0% 0% 0% 0%




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                                                                                                        10
A wave is passing through a uniform
 medium. As the frequency of this
  wave increases, its wavelength
1.   Depends on amplitude
2.   Decreases
3.   Increases
4.   Does not change
                                                 0% 0% 0% 0%




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                                                                                            10
              Leader Board
0   Participant 1
0   Participant 2
0   Participant 3
0   Participant 4
0   Participant 5
 If the amplitude of a mechanical
 wave is tripled, the rate of energy
  transfer of the wave is _____ .
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
                                                   0%           0%           0%             0%




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                                                                                                   10
     A ____ wave travels through a
         medium as a series of
     compressions and rarefactions.
1.   Sine
2.   Longitudinal
3.   Pulse
4.   Transverse
                                  0%       0%        0%         0%




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                                                                      10
    When two transverse waves
 traveling through a medium meet
 and exactly coincide, the resulting
    displacement of the medium
1. Is the sum of the displacements
   of each wave
2. Is zero
3. Is always greater than the
   displacement of either wave                          0% 0% 0% 0%

   alone




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                                                                                                        10
        When two waves having
       displacements in opposite
     directions meet, ____ occurs.
1.   Complete destructive interference
2.   No interference
3.   Constructive interference
4.   Destructive interference
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                                                                                                       10
  A wave pattern on a stretched
 string appears to be stationary.
This wave pattern is an example of
1.   A longitudinal wave
2.   A non-periodic wave
3.   A pulse wave
4.   A standing wave
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                                                                                            10
              Leader Board
0   Participant 1
0   Participant 2
0   Participant 3
0   Participant 4
0   Participant 5
 In a standing wave on a vibrating
   string, a point that appears to
      remain stationary is a(n)
1. Antinode
2. Point of constructive
   interference
3. Node
4. rarefaction                       0% 0% 0% 0%




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                                                                           10
An ocean wave has a frequency of
2 Hz and a speed of 20 m/s. What
  is the wavelength of this wave?
1.   0.1 m
2.   5m
3.   10 m
4.   40 m

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                                                       10
      Two waves meet and interfere
     constructively. Which one of the
       following factors increases?
1.    Period
2.    Frequency
3.    Wavelength
4.    None of the above
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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?
1. The flute
2. The trombone
3. They reach your ears at the              0%           0%               0%


   same time.



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                                                                               10
  If a 48 kg mass oscillates on a
spring with a spring constant of 12
   N/m, what is the period of the
            oscillation?
1.   8π seconds
2.   4π seconds
3.   π seconds
4.   π/2 seconds


                                      10
              Leader Board
0   Participant 1
0   Participant 2
0   Participant 3
0   Participant 4
0   Participant 5
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?
1. 4.8 s
2. 2.4 s
3. 0.6 s
4. 0.3 s

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                                                                10
  The spring constant in a given
oscillating mass-spring system may
            be changed by
1. Increasing the mass
2. Decreasing the mass
3. Decreasing the initial
   displacement
4. None of the above                                  0% 0% 0% 0%




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                                                                                                10
 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.   1.76
2.   21.6
3.   106
                                 0%        0%    0%   0%
4.   239




                                                 6




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                                                      23
                                      21
                          1.
                                                           10
  In an oscillating mass-spring
   system, the distance of the
maximum compression distance of
   the spring is a measure of
1.   Amplitude
2.   Frequency
3.   Period
4.   Equilibrium                0%         0%        0%           0%




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                                                                       10
         Final Leader Board
0   Participant 1
0   Participant 2
0   Participant 3
0   Participant 4
0   Participant 5

				
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posted:3/18/2013
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