Question

Illustrate conservation of energy in a simple pendulum.

Answer 1

Answer:

Explanation:

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.

Answer 2

Conservation of energy is there in a simple pendulum as kinetic energy is converted into potential energy and vice- versa

Explanation:

In simple pendulum there is conversion of kinetic energy into potential energy and vice- versa and hence total or mechanical energy remains constant throughout the oscillation. At different position there is conversion of energies

At mean position :-

• At mean position there is no displacement so potential energy at mean point is zero ( potential energy is given as the change in position or configuration)
• At mean position bob starts its motion so have maximum kinetic energy ( kinetic energy due to motion of body)
• As total energy is constant hence energy is conserved

At extreme position :-

• At any extreme position bob covers maximum displacement so have maximum potential energy
• At any extreme position bob have zero velocity as reverse its path so kinetic energy is zero
• As total energy is constant hence energy is conserved

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