
A toy car rolls down the inclined plane as shown in the above figure. It loops at the bottom. What is the relation between H and h?


Important Questions on Potential Energy, Kinetic Energy and Gravity






A ball falls to the ground as shown below:
What is the potential energy of the ball at B?


Prove that the kinetic energy of a freely falling object on reaching the ground is nothing but the transformation of its initial potential energy.


The P.E. of a body at a certain height is The kinetic energy possessed by it when it just touches the surface of the earth is _____.


The total energy of an object falling freely towards the ground _____.
(Choose from: decreases, remains unchanged, increases, increases in the beginning and then decreases)

A ball falls to the ground as shown below:
What is the kinetic energy of the ball when it hits the ground?








A ball falls to the ground as shown below:
Which law can be used to calculate the potential and kinetic energy at point B and C, respectively?

