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- 1. Multiple Choice
Two pendulums are in simple harmonic motion. Pendulum A is longer than pendulum B. Pendulum B has a larger mass than A. The period of pendulum A is
longer than pendulum B
shorter than pendulum B
the same as pendulum B
not enough information
- 2. Multiple Choice
A pendulum swinging with a maximum amplitude of π/6 has a period of T. If the maximum amplitude is increased to π/3, what is the new period of the pendulum?
T/4
T/2
T
2T
- 3. Multiple Choice
A pendulum's period is initially T. Changes are made to the system so that the new period is 2T. What may have been changed?
The length of the pendulum was increased by a factor of 2.
The pendulum was moved to a planet with 2 times the mass of Earth.
The length of the pendulum was increased by a factor of 4.
The pendulum was moved to a planet with 4 times the mass of earth.
- 4. Multiple ChoiceA 5 kg ball hangs from a 10 m string. The ball is swung horizontally outward 90º from its equilibrium position. Assuming the system behaves as a simple pendulum, find the maximum speed of the ball during its swing.50 m/s14 m/s10 m/s5 m/s
- 5. Multiple Choice
The energy contained in a pendulum depends on its
I. period
II. amplitude
III. mass
I only
II only
II and III only
I, II, and III
- 6. Multiple ChoiceWhich of the following is true of a damped simple pendulum in which the amplitude of motion decreases exponentially?Its period decreases through time.The total energy of the pendulum remains the same.The maximum kinetic energy decreases through time.The maximum potential energy increases through time.
- 7. Multiple Choice
The energy contained in an oscillating spring depends on its
I. period
II. amplitude
III. mass
I only
II only
II and III only
I, II, and III
- 8. Multiple ChoiceIf a force of 20 N stretches a spring 0.5 m, what is the spring constant?10 N/m20 N/m40 N/cm40 N/m
- 9. Multiple Choice
Which position shows the spring with maximum kinetic energy?
A
B
C
D
- 10. Multiple Choice
A weight of mass m is at rest at O when suspended from a spring, as shown. When it is pulled down and released, it oscillates between positions A and B. Which statement about the system consisting of the spring and the mass is correct?
The gravitational potential energy of the system is greatest at A.
The elastic potential energy of the system is greatest at O.
The kinetic energy of the system is greatest at O.
The acceleration is the greatest at O
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