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Phys chapter 12AB

QuestionAnswer
Work Force * Distance
Work may be done by Linear or repetitive motion
Vibrations Small or rapid
Oscillations Large and slow
Periodic motion repeats at a constant rate
Periodic motion alternates between Mechanical potential energy and Kinetic energy
An example of a periodically oscillating system Pendulum
Resting Position When hangs straight down and being pulled by gravity
Amplitutde Farthest position away from resting position. Reached twice as the system goes through resting position and to the other side. A spring is also an example.
Measured in seconds; The time it takes to complete one cycle of a system Period
The rate at which cycles repeat; measured in hertz Frequency
The pull that wants to restore the string to resting position Restoring Force
Restoring force happens whenever an object is not at rest
The farther away from the rest the greater the restoring force
the more massive, the more slowly it will vibrate and the longer its period will be because it takes longer to go through one cycle Mass
The effect of friction on periodic motion - making the amplitude get smaller over time; without this, objects would continue to vibrate forever. Damping
The opposite of damping - making the amplitude get bigger over time Resonance
Mass attched to an arm at a pivot point the swings under the influence of gravity Pendulums
Created by: 1484590971
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