work, power, and machanical advantage.

Worked is done only when force causes a change in the position or the motion of an object in the direction of the applied force. Worked is measured in joules (J). Power is the rate at which work is done, that is, how much work is done in a given amount of time. Power is measured in watts (W). Mechanical Advantage is defined as the ratio between the output force and the input force. Examples 1: Work- Liftying weights or lifting something heavy. Example 2: Power- Electricity and running. Example 3: Mechanical advantage- some machines help you lift or move heavy objects. I learned that Work, Power, and Mechanical Advantage all use force.