SCIENCE CLASS VIII ENERGY CONSERVATION THROUGH PENDULUM

 

As a part of discussion of Energy, In a simple pendulum with no friction, mechanical energy is conserved.  Total mechanical energy is a combination of kinetic energy and gravitational potential energy.   As the pendulum swings back and forth, there is a constant exchange between kinetic energy and gravitational potential energy.At its starting point, all of the swing’s mechanical energy is potential energy. It has no kinetic energy because it’s not moving.

As the swing moves downward, some of its potential energy changes into kinetic energy.

At its bottommost point, the swing’s kinetic energy is at its maximum because it is moving at its fastest speed. Its potential energy is at a minimum because the swing is at its lowest point.

The learners used the pendulum and observed the rotation of pendulum to get the concept of Energy conservation.