Question

A ball rolls from point A to point B. The total energy of the ball at point A isn’t the same as the sum of its potential energy and kinetic energy at point B. Which statement best explains this situation?

A.
The rolling ball doesn’t follow the law of conservation of energy.
B.
Some of the ball’s energy is transformed to thermal energy.
C.
The rolling ball loses some of its energy because of gravity.
D.
The ball absorbs some of its own potential energy.

Answer 1

B.Some of the ball’s energy is transformed to thermal energy.

Explanation: Law of conservation of energy states that energy can neither be formed nor be destroyed but it can only be transformed from one form to another form