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Physical Science 7 A

Teacher: Juana Chavez
The force exerted on a simple machine by a load.
A measure of the reduction in effort to do a certain amount of work when using a simple machine.
A basic mechanical device that either reduces effor ot increase the magnitued of motion for a given input motion when doing a certain amount of work.
The rate of doing work measured in Watts
The force exerted on a simple machine to do work on a load.
A consequence of the law of conservation fo energy, which states that waork input must equal work output.
The equivalent of the amount of enerty transferred to an object when a force acts on the object to move it in a direction parallel to the force vector.
The system on which work is done by a machine.