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Physics Chapter 11 Review

Terms in this set (31)

Which of the following is not an example of approximate simple harmonic motion?
A. a ball bouncing on the floor
B. a child swinging on a swing
C. a piano wire that has been struck
D. a car's radio antenna waving back and forth
A. a ball bouncing on the floor
Vibration of an object about an equilibrium point is called simple harmonic motion when the restoring force is proportional to
A. time
B. displacement
C. A spring constant
D. mass
B. displacement
A mass attached to a spring vibrates back and forth. At the equilibrium position, the
A. acceleration reaches a maximum
B. velocity reaches a maximum
C. net force reaches a maximum
d. velocity reaches zero
B velocity reaches a maximum
A mass attached to a spring vibrates back and forth. At maximum displacement, the spring force and the
A. velocity reach a maximum
B. velocity reach zero
C. acceleration reach a maximum
D. acceleration reach zero
C. acceleration reach a maximum
A mass-spring system can oscillate with simple harmonic motion because a compressed or stretched spring has which kind of energy?
elastic potential
The angle between the string of a pendulum at its equilibrium position and at its maximum displacement is the pendulum's...
amplitude
For a mass hanging from a spring, the maximum displacement the spring is stretched or compresses from its equilibrium position is the system's...
amplitude
For a system in simple harmonic motion, which of the following is the time required to complete a cycle of motion?
period
For a system in simple harmonic motion, which of the following is the number of cycles or vibrations per unit of time?
frequency
How are frequency and period related in simple harmonic motion?
They are inversely related
One end of a taut rope is fixed to a post. What type of wave is produced if the free end is quickly raised and lowered one time?
Pulse wave
Each compression in the waveform of a longitudinal wave corresponds to what feature of the transverse wave?
crests
Each stretched region in the waveform of the longitudinal wave corresponds to what feature of the transverse wave?
troughs
When two mechanical waves collide, the amplitude of the resultant wave is always _________ the amplitude of each wave alone.
the sum of
Two mechanical waves that have positive displacements from the equilibrium position meet and coincide. What kind of interference occurs?
Constructive interference
Two mechanical waves meet and coincide. One wave has a positive displacement from the equilibrium position, and the other wave has a negative displacement. What kind of interference occurs?
Destructive interference
The motion of a metronome is an example of...
simple harmonic motion
A stretched or compressed spring stores what kind of potential energy?
elastic
Simple harmonic motion is the vibration about an equilibrium position in which a(n) __________ force is proportional to the displacement from equilibrium.
restoring
In the equation for Hooke's law the term k represents what?
the constant of the spring
How is the relationship between period and frequency represented as an equation?
f=1/T
Electromagnetic waves can move through empty space, but mechanical waves require a ________ through which to travel.
medium
When two waves meet, they combine according to what principle?
Super Position
If a force of 52 N stretches a spring .36 m, what is the spring constant?
144.44 N x m
An amusement park ride has a frequency of .064 Hz. What is the ride's period?
15.63 seconds
An amusement park ride swings back and forth once every 17.4 seconds. What is the ride's frequency?
.057 Hz
A periodic wave has a wavelength of .58 m and a speed of 14 m/s. What is the wave frequency?
24.14 Hz
A musical tone sounded on a piano has a frequency of 215.1 Hz and a wavelength of 1.47 m. What is the speed of the sound wave?
316.2 m/s
Waves propagate along a stretched string at a speed of 6.9 m/s. The end of the string vibrates up and down once every 3.6 seconds. What is the wavelength of the waves traveling along the string?
24.91 m
Define a pulse wave.
A wave that is fixed at one end.
Define damping.
The force that slows down an object from continuing on forever.
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