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- 1. Multiple Choice
What is the unit for frequency?
seconds
hertz
lambda
nu
- 2. Multiple Choice
The ____________ of a simple harmonic oscillator is the time it takes for one complete cycle of oscillation to be completed.
cycle
period
frequency
amplitude
- 3. Multiple Choice
What will happen to the period of a pendulum when the length is quadrupled?
The period will be quadrupled.
The period will be doubled.
The period will be cut by a fourth.
The period will be cut in half.
- 4. Multiple Choice
Through which medium, if any, will a sound wave move most quickly?
The sound wave will move at the same speed through all of the mediums.
Water
Air
Soil
- 5. Multiple Choice
The potential energy of a spring is proportional to the square of the displacement from the equilibrium position.
True
False
- 6. Multiple Choice
____________ waves move perpendicularly to the direction the wave propagates.
Transverse
Longitudinal
Sine
Compression
- 7. Multiple Choice
____________ waves move parallel to the direction the wave propagates.
Transverse
Longitudinal
Sine
Compression
- 8. Multiple Choice
When two waves have the same wavelength but begin at different times are said ___________.
to be in phase.
to be out of phase.
to have the same amplitude.
to have the same cycle.
- 9. Multiple Choice
The speed of a wave is determined solely by the wave’s ____________________.
amplitude
medium
period
velocity
- 10. Multiple Choice
The ____________________ states that two or more waves that overlap combine by summing their
displacements algebraically.
superposition principle
wave interference
destructive interference
constructive interference
- 11. Multiple Choice
The period of a simple harmonic oscillator is the time it takes for one complete cycle of oscillation to be completed.
True
False
- 12. Multiple Choice
The force exerted by a spring is inversely proportional to the displacement from its equilibrium position.
True
False
- 13. Multiple Choice
What is the period of a pendulum which has a length of 40m (use g=10m/s2)?
8π
4π
4
2
- 14. Multiple Choice
The graph of the elastic potential energy of a spring vs its displacement will be ________________.
a straight line with a positive slope
a straight line with a negative slope
a parabola.
a sine wave.
- 15. Multiple Choice
_______________ states that the force exerted by a spring is directly proportional to the amount that the spring is stretched
Hooke's Law
The Periodic Law
Peter's Law
Simple Harmonic Motion
- 16. Multiple Choice
The area under the curve of a Fspring vs displacement is ________________.
potential energy
kinetic energy
mechanical energy
amplitude.
- 17. Multiple Choice
A simple pendulum consists of a massive object, called the ___________, suspended by a string or light rod of length l.
bob
mass
force
weight
- 18. Multiple Choice
What is the frequency of a merry-go-round that goes around 8 times a second?
50.24 Hz
0.125 Hz
0.12 Hz
8 Hz
- 19. Multiple Choice
What should the length of a pendulum be to have a period of 5 seconds?
39.80 m
15.92 m
7.96 m
6.21 m
- 20. Multiple Choice
What is the wavelength of a high C note which has a frequency of 261.6 Hz? The speed of sound is 343 m/s.
1.3 m
87.7 km
0.76 m
1.15 m
- 21. Multiple Choice
Lexi stretches a spring and induces 20.0 kJ of elastic potential energy stored when it is stretched out. If its spring constant is 100.0 N/m, how far did Lexi stretch the spring?
20.0 m
200.0 m
100.0 m
10.0 m
- 22. Multiple Choice
__________ is a special form of simple harmonic motion in which the additions of small amounts of force at specific times in the motion of an object cause a larger and larger displacement.
Resonance
Forced oscillation
Recalcitrance
Natural oscillation
- 23. Multiple Choice
A ______ is a disturbance that carries energy through matter or space
wave
phase
frequency
amplitude
- 24. Multiple Choice
The wave that strikes the boundary is called the _____________________
incident wave
reflected wave
refracted wave
internal wave
- 25. Multiple Choice
The points along a sinusoidal wave at which displacement is zero is called a(n) ________.
node
antinode
crest
trough
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