Introduction To Periodic Motion
Concepts to remember on Introduction to Periodic Motion for JEE and CBSE board exams:
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Periodic motion:
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Repeats itself at regular intervals.
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Time period is the time taken for one complete oscillation.
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Frequency is the number of oscillations per second.
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Simple harmonic motion (SHM):
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Restoring force is directly proportional to the displacement from the mean position.
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Total energy is constant.
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Hooke’s law: Restoring force in SHM is directly proportional to displacement.
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Amplitude: Maximum displacement from the mean position.
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Phase: Angular displacement from the reference position at an instant.
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Applications of SHM: Used in springs, pendulums, waves, and sound.
