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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
- 26. Multiple ChoiceA force of 30 N stretches a very light ideal spring 0.73 m from equilibrium. What is the force constant (spring constant) of the spring?41 N/m22 N/m34 N/m46 N/m
- 27. Multiple ChoiceA pair of trapeze performers at the circus is swinging from ropes attached to a large elevated platform. Suppose that the performers can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle.2 sec12 sec8 sec10 sec
- 28. Multiple ChoiceA pendulum is 0.75 meters long and has a period of 4.17 seconds. The Pendulum is on an unknown planet. What is the gravity of the Unknown Planet?9.83.41.7Greater than 9.8
- 29. Multiple Choice
From the graph ,the spring constant is.
4.5 m
15 N
20 N/m
200 N/m
- 30. Multiple ChoiceA net force of 430 N acts to stretch an extension spring. How far will the spring stretch if its spring constant is 700 N/m?43.90.307 m1.63 m0.614 m
- 31. Multiple ChoiceWhat force should be applied to compress a spring by 0.013 m if its spring constant is k = 1900 N/m?1880 N24.7 N1900 N0.127 N
- 32. Multiple ChoiceWhat is the equation for frequency?f = t/nf = 1/Tf = 2 T
- 33. Multiple ChoiceA mass-spring system can oscillate with simple harmonic motion because a compressed or stretched spring has which kind of energy?kineticmechanicalgravitational potentialelastic potential
- 34. Multiple ChoiceFor a system in simple harmonic motion, which of the following is the time required to complete a cycle of motion?amplitudeperiodfrequencyrevolution
- 35. Multiple ChoiceFor a system in simple harmonic motion, which of the following is the number of cycles or vibrations per unit of time?amplitudeperiodfrequencyrevolution
- 36. Multiple ChoiceThe period of a pendulum may be decreased byIncreasing the mass of the bobmoving the equilibrium pointdecreasing the mass of the bobshortening the length of pendulum
- 37. Multiple ChoiceIn any system in SHM, the restoring force acting on the mass in the system is proportional tothe displacementthe length of the pendulumthe massthe frequency
- 38. Multiple ChoiceWhich position shows the spring with maximum gravitational potential energy?ABCD
- 39. Multiple ChoiceA mass attached to a spring vibrates back and forth. At the equilibrium position, theacceleration reaches a maximum.velocity reaches a maximum.net force reaches a maximum.velocity reaches zero.
- 40. Multiple Choice
The total mechanical energy of a simple harmonic oscillator is
zero as it passes the equilibrium point.
zero when it reaches the maximum displacement.
a maximum when it passes through the equilibrium point
a minimum when it passes through the equilibrium point
constant
- 41. Multiple Choice
A mass is attached to a vertical spring and bobs up and down between points A and B. Where is the mass located when its kinetic energy is a maximum?
at either A or B
midway between A and B
one-third of the way between A and B
one-fourth of the way between A and B
- 42. Multiple Choice
If you take a given pendulum to the Moon, where the acceleration of gravity is less than on Earth, the resonant frequency of the pendulum will
increase
decrease
not change
become zero
- 43. Multiple Choice
A pendulum clock on the surface of the earth has a period of 1.00 s. On a distant planet, the length of the pendulum must be shortened slightly to have a period of 1.00 s. What is true about the acceleration of gravity on the distant planet?
The gravitational acceleration of the planet is 0
The gravitational acceleration of the planet is slightly greater than g
The gravitational acceleration of the planet is slightly less than g
There is no gravitational acceleration on the planet
- 44. Multiple Choice
Curve A in Figure represents
an under-damped situation
an over-damped situation
a moderately damped situation
critical damping
- 45. Multiple Choice
Curve B in Figure represents
an under-damped situation
an over-damped situation
a moderaly damped situation
critical damping
- 46. Multiple Choice
For a damped driven harmonic oscillator, the frequency at which the amplitude is maximum is
greater than the natural frequency of oscillation
equal to the natural frequency of oscillation
less than the natural frequency of oscillation
zero
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