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Physics - motion_ speed_ amplitude_ oscillators

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Physics - motion_ speed_  amplitude_  oscillators Powered By Docstoc
					Chapter 14
An object moves with simple harmonic motion. If the
amplitude and the period are both doubled, the object’s
maximum speed is




      1. quartered.
      2. halved.
      3. quadrupled.
      4. doubled.
      5. unchanged.
An object moves with simple harmonic motion. If the
amplitude and the period are both doubled, the object’s
maximum speed is




      1. quartered.
      2. halved.
      3. quadrupled.
      4. doubled.
      5. unchanged.
The figure shows four oscillators at t = 0. Which one has
the phase constant


 1) a
 2) b
 3) c
 4) d
The figure shows four oscillators at t = 0. Which one has
the phase constant


 1) a
 2) b
 3) c
 4) d
Four springs have been compressed from their
equilibrium position at x = 0 cm. When released, they
will start to oscillate. Rank in order, from highest to
lowest, the maximum speeds of the oscillators.


                                          1. c > b > a = d
                                          2. c > b > a > d
                                          3. d > a > b > c
                                          4. a = d > b > c
                                          5. b > c > a = d
Four springs have been compressed from their
equilibrium position at x = 0 cm. When released, they
will start to oscillate. Rank in order, from highest to
lowest, the maximum speeds of the oscillators.


                                          1. c > b > a = d
                                          2. c > b > a > d
                                          3. d > a > b > c
                                          4. a = d > b > c
                                          5. b > c > a = d
This is the position graph
of a mass on a spring.
What can you say about
the velocity and the force
at the instant indicated
by the dotted line?



 1. Velocity is positive; force is to the right.
 2. Velocity is negative; force is to the left.
 3. Velocity is negative; force is to the right.
 4. Velocity is zero; force is to the right.
 5. Velocity is zero; force is to the left.
This is the position graph
of a mass on a spring.
What can you say about
the velocity and the force
at the instant indicated
by the dotted line?



 1. Velocity is positive; force is to the right.
 2. Velocity is negative; force is to the left.
 3. Velocity is negative; force is to the right.
 4. Velocity is zero; force is to the right.
 5. Velocity is zero; force is to the left.
One person swings on a swing and finds that the period is
3.0 s. Then a second person of equal mass joins him. With
two people swinging, the period is




       1. 1.5 s.
       2. <3.0 s but not necessarily 1.5 s.
       3. 3.0 s.
       4. >3.0 s but not necessarily 6.0 s.
       5. 6.0 s.
One person swings on a swing and finds that the period is
3.0 s. Then a second person of equal mass joins him. With
two people swinging, the period is




       1. 1.5 s.
       2. <3.0 s but not necessarily 1.5 s.
       3. 3.0 s.
       4. >3.0 s but not necessarily 6.0 s.
       5. 6.0 s.
Rank in order, from largest to smallest, the time
constants        of the decays shown in the figure.

              1.
              2.
              3.
              4.
              5.
Rank in order, from largest to smallest, the time
constants        of the decays shown in the figure.

              1.
              2.
              3.
              4.
              5.
 Chapter 14
Reading Quiz
What is the name of the quantity represented
by the symbol



       1. Angular momentum
       2. Angular frequency
       3. Phase constant
       4. Uniform circular motion
       5. Centripetal acceleration
What is the name of the quantity represented
by the symbol



       1. Angular momentum
       2. Angular frequency
       3. Phase constant
       4. Uniform circular motion
       5. Centripetal acceleration
What term is used to describe an oscillator that “runs
down” and eventually stops?




       1. Tired oscillator
       2. Out of shape oscillator
       3. Damped Oscillator
       4. Resonant oscillator
       5. Driven oscillator
What term is used to describe an oscillator that “runs
down” and eventually stops?




       1. Tired oscillator
       2. Out of shape oscillator
       3. Damped Oscillator
       4. Resonant oscillator
       5. Driven oscillator
The starting conditions of an oscillator are
characterized by



       1. the initial acceleration.
       2. the phase constant.
       3. the phase angle.
       4. the frequency.
The starting conditions of an oscillator are
characterized by



       1. the initial acceleration.
       2. the phase constant.
       3. the phase angle.
       4. the frequency.
Wavelength is


  1. the time in which an oscillation repeats itself.
  2. the distance in which an oscillation repeats
     itself.
  3. the distance from one end of an oscillation to
     the other.
  4. the maximum displacement of an oscillator.
  5. not discussed in Chapter 14.
Wavelength is


  1. the time in which an oscillation repeats itself.
  2. the distance in which an oscillation repeats
     itself.
  3. the distance from one end of an oscillation to
     the other.
  4. the maximum displacement of an oscillator.
  5. not discussed in Chapter 14.

				
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