Physical Science Work and Force

Term Definition
Work It is the product of the force applied to an object and the displacement of the object
Power The rate at which work is done.
Joule It is the Standard International unit of energy.
Simple Machine Device that changes magnitude and/or direction of a force.
Mechanical Advantage The ratio of how much easier is to complete a task.
Lever Stiff bar that rests on a fulcrum.
Wedge Device made up of two inclined planes put together to form a sharp edge
Inclined Plane Slanting surface that connects a lower level to a higher level
Screw Inclined plane wrapped around a center post.
Wheel and Axle Wheel attached to an axle so they rotate together.
Pulley Wheel on an axle designed to support movement.