A force is an influence such as a push or a pull. It tries to alter things from the way they are (whether or not it is successful is a different matter).
The standard unit of force is the Newton (N), which is defined as the amount of force needed to accelerate a mass of one kilogram at a rate of one meter per second squared.
Work is done when a force is applied to an object, and as a result the object is moved a distance.
The standard unit of work is the joule (J), which is defined as force applied multiplied by the distance moved. Therefore if a force is applied but the object is not moved, no work has been done.
Power is the rate of doing work or joules per second. Doing the same amount of work in less time means a greater amount of power has been exerted.
Leave a Reply