Physics- simple harmonic motion and Hooke's law

.state hooke’s law

when an object is stretched, bent or deformed the restoring force is proportional to the displacement from its equilibrium'

F=-ks F=restoring force k= elastic constant s= displacement from equilibrium position

A pendulum moves with simple harmonic motion give another example of a body that moves with simple harmonic motion

• a mass oscillating up and down on a spring

• Compass coming to rest in North-South direction

• each prong of a tuning fork when it is struck

• a molecule vibrating inside a solid

Describe the movement of a particle that is undergoing simple harmonic motion

simple harmonic motion is the periodic motion in which the acceleration is proportional to the displacement from its equilibrium position and directed towards the position

a=—ws² a = acceleration w=angular frequency s= displacement from equilibrium position

when does a simple pendulum execute simple harmonic motion

when it is oscillating at a small angle

what is the relationship between the period and the length of a simple pendulum

the period is proportional to the root of its length