# Difference between energy and force?

by syano
Tags: difference, energy, force
 P: 99 What is difference between energy and force? Is energy just a measurement of a force? Thanks, S
 Sci Advisor P: 5,772 Simple example: Holding a rope taut is using force. Pulling something with rope is using energy.
 PF Patron Sci Advisor Emeritus P: 1,819 Energy is a 'property' which you have when a force is applied over a certain distance. It's sort of counting up all the force which has acted on you, and giving a number you can use to make calculations simpler.
P: 43

## Difference between energy and force?

energy is sort of the potential to exert a force.

more accurately, energy is the potential to do work, but work is a function of force.

forces change the way things move. to make something move, change direction or stop moving, you need to exert a force on it. but you cannot exert a force unless you have the energy to do so.

when you move your mouse, your hand exerts a force on the mouse to move it. the energy required to exert that force comes from the energy stored in your muscles.

another example: think about bowling a ball at some skittles. when the ball is rolling, it has energy (kinetic energy), when it hits the skittles, it uses up that energy to exert a force on the skittles. the force knocks the skittles over. the movement of the ball gives it the energy to exert that force.