A simple machine that might be thought of as an inclined plane that moves is a

One example of a compound machine is a

The ideal mechanical advantage for an inclined plane is equal to the length of the inclined plane divided by the

Which is the best scientific definition of a machine?

Power is measured in units called

The wedge, screw, and lever are all

A device that is twice as powerful as another can do ___________ the amount of work in the same time.

The force exerted by a machine is called the __________ force.

You do ___________ on an object when you lift it of the floor and onto a shelf.

A machine can never be 100% efficient because some work is lost due to

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