Simple Harmonic Motion …an introduction.. A periodic (repeating) motion that is the result of a...
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Transcript of Simple Harmonic Motion …an introduction.. A periodic (repeating) motion that is the result of a...
Simple Harmonic Motion…an introduction.
• A periodic (repeating) motion that is the result of a restoring force which is proportional to the object’s displacement from rest position.
• A restoring force always pushes/pulls toward the rest position (equilibrium).
• One complete oscillation of an object undergoing periodic motion; when an object undergoing periodic motion has returned to its initial state (position and velocity), it has completed one cycle.
Cycle
• The time it takes for an object in SHM to undergo one complete cycle.• Symbol: T• Units: seconds, minutes, days, etc.
Period
• The number of cycles that occur per unit of time (usually per second).• Symbol: f• Units: hertz (Hz), sec-1, rev/sec, etc.• T and f are inverses of one another.
FREQUENCY
f1
TT1
f
• The maximum displacement of an object from its equilibrium position.• Symbol: A• Units: meters, cm, mm, nm, km, etc.
Amplitude
1 amplitude
1 amplitude
1 amplitude 1 amplitude
During one cycle, an object in SHM travels a total distance equal to 4 times its amplitude.