Work, Power, and Machines Fill in the Blank

The (a)   of a machine is the number of times that the machine increases the input force.

The rate at which work is done is called (a)   .

For work to be done on the object, the object has to (a)   .

A machine is a device that changes a(an) (a)   .

The SI unit of work is the (a)   .

Besides a reduction in friction, the only way to increase the amount of work output of a machine is to (a)   the work input.

The watt and the horsepower are both units of (a)   .

A device that changes the size or direction of force used to do work is called a(an) (a)   .

Any part of a force that does not act in the direction of an object's motion does no (a)   on an object.

The SI unit of power is (a)   .