Simple harmonic motion
Simple harmonic motion is a type of periodic motion in which an object undergoes oscillatory motion. The restoring force exerted by the object exhibiting SHM is proportional to the displacement from the equilibrium position. The force is directed towards the mean position. We see many examples of SHM around us, common ones are the motion of a pendulum, spring and vibration of strings in musical instruments, and so on.
Simple Pendulum
A simple pendulum comprises a heavy mass (called bob) attached to one end of the weightless and flexible string.
Oscillation
In Physics, oscillation means a repetitive motion that happens in a variation with respect to time. There is usually a central value, where the object would be at rest. Additionally, there are two or more positions between which the repetitive motion takes place. In mathematics, oscillations can also be described as vibrations. The most common examples of oscillation that is seen in daily lives include the alternating current (AC) or the motion of a moving pendulum.
Question Post-2: When a torsion pendulum oscillates, does the period of motion depend onthe amplitude? Explain
To explain the working of a torsion pendulum.
A torsion pendulum is a rigid symmetrical body, usually a disk, suspended by a light wire or string, such that the face of the disk is parallel to the ground.
The disk is then twisted laterally by an angle and then released.
The restoring torque is provided by the shearing of the wire and the pendulum twists to and fro, exhibiting simple harmonic motion.
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