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10 Cards in this Set
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- Back
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Periodic Motion
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motion in which a body moves back and forth with a fixed path over a
definite interval of time. |
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Harmonic Motion
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Periodic motion with no friction that is produced by a restoring
force that is directly proportional to the displacement and oppositely directed. |
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Equilibrium position
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this is the point in the motion where the object would be if it were
not subject to any forces. |
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Amplitude (A)
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The maximum displacement from the equilibrium position.
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Cycle
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One complete iteration of the motion sequence.
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Period (T )
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The time it takes to do one cycle.
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Frequency ( f )
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The number of cycles per unit of time.
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Phase points
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points along the displacement path where the object is doing the same thing.
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Hooke’s Law
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This is the force that is
exerted by the spring. Fs = −kx the minus sign simply means that the force exerted by the spring is always opposite to the displacement. (so ignore it) |
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Maximum Force (Harmonic/Periodic Motion)
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Fmax = −kA
Where FMax is the maximum restoring force, k is the spring constant and A is the amplitude. the minus sign simply means that the force exerted by the spring is always opposite to the displacement. (so ignore it) |
