When you exert a force on an object that causes the object to move.

For work to happen, when a force is applied:

The joule measures:

Work depends on:

The rate that energy is transferred.

Power is measured in:

A device that makes work easier by changing the size or direction of the force.

The work you put into a machine.

The work a machine puts out.

The number of times the machine multiplies force.

A simple machine with a bar that pivots at a fixed point, called a fulcrum.

A wheelbarrow is an example of a______class lever.

Scissors would be an example of a _______ class lever.

A teeter-totter would be an example of a _______ class lever.

Your forearm would be an example of a _______ class lever.

A simple machine that has a grooved wheel that holds a rope or cable.

Block and tackle pulleys are very efficient because of the:

A simple machine with two circular objects of different sizes.

Turning the wheel on a wheel and axle results in a mechanical advantage because:

The greater the length is in relation to the height of an inclined plane, the___________the mechanical advantage is.

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