How can we define damping ?what is the effect of damping on amplitude ?
state the working principle of simple pendulum in short ?
Answers
Damping: a decrease in the amplitude of an oscillation as a result of energy being drained from the system to overcome frictional or other resistive forces.
Effects of Damping:
The effect of damping on resonance graph: The amplitude of the resonance peak decreases and the peak occurs at a lower frequency. So damping lowers the natural frequency of an object and also decreases the magnitude of the amplitude of the wave.
Pendulum:
A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position.
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Answer 1
The opposition to free vibration of Bob of a simple pendulum due to air presence around it is known as damping.
Answer 2
The effect of damping on amplitude is after is vibration damping decreases the amplitude exponentially.
Answer 3
A pendulum repeats its motion after regular interval of time, this constitutes the working principle of simple pendulum.
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