## How do you calculate the potential energy of water?

The formula for potential energy depends on the force acting on the two objects. For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.

## What determines how much potential energy something has?

The factors that affect an object’s gravitational potential energy are its height relative to some reference point, its mass, and the strength of the gravitational field it is in.

## What type of potential energy is water?

The water in a reservoir behind a hydropower dam is another example of potential energy. The stored energy in the reservoir is converted into kinetic energy (motion) as the water flows down a large pipe called a penstock and spins a turbine.

## Does water have a lot of potential energy?

Because of kinetic energy water can flow and waves can exist. But water can also contain potential energy. This is energy that is stored in the water.

## Is work equal to potential energy?

Potential energy and work done are the same thing as much as kinetic energy and work done are the same thing. Generally speaking in physics we are interested in conservative forces, and one of the definitions of a conservative force is that the work done is equal to the change in potential energy.

## Is potential energy negative of work done?

The change in potential is then defined as the negative of the work done by that force. This is technically the gravitational potential energy of the ball-Earth system. You can’t have work done by gravity AND a change in gravitational potential energy.

## What is energy at rest called?

Potential energy is the latent energy in an object at rest, and is one of two forms of energy. The other form, kinetic energy, is the energy expressed by an object in motion.

## Can you have negative potential energy?

Potential energy may also be negative because of where you set your zero point, the point where your potential energy is zero. If the table top is the zero of P.E. then the same book on the floor now has a negative amount of potential energy.