Question

A tennis ball has 10 J of energy when it is 1 m above the floor. Name one store associated with this energy

Answer 1

Explanation:

Gravitational potential energy and work done

If an object is lifted, work is done against the force of gravity.

When work is done energy is transferred to the object and it gains gravitational potential energy.

If the object falls from that height, the same amount of work would have to be done by the force of gravity to bring it back to the Earth’s surface.

If an object at a certain height has 2000 J of gravitational potential energy, we can say that:

2000 J of work has been done in getting the object to that height from the ground

and

2000 J of work would have to be done to bring it back to the ground.