Science Ch. 15
force acting through a distance
rate at which work is done, or the amount of work per unit of time.
The unit of power
An instrument that makes work easier
The work that goes into the machine.
The work done by the machine.
The comparison of work output to work input.
The number of times a machine multiplies the effort force.
An example is a ramp.
an inclined plane that moves.
An inclined plane wrapped around a central bar.
a rigid bar that is free to pivot, or move about a fixed point.
The fixed or pivotal point on a lever.
a rope, belt, or chain wrapped around a grooved wheel.
Wheel and Axle
Simple machine made up of two circular objects.
A combination made up of two or more simple machines.
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