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S8P3.c
Demonstrate the effect of simple machines on work
Term | Definition |
---|---|
Work | The transfer of energy to an object by using a force that causes the object to move in the the direction of the force |
Machine | A device that helps do work either by overcoming a force or changing the direction of the applied force |
Inclined plane | A simple machine that is straight,slanted surface,which facilitates the raising of loads;a ramp |
Wedge | A simple machine that is made up of two inched planes and that moves;often used for cutting |
Screw | A simple machine that consists of an inclined plane wrapped around a cylinder |
Lever | A simple machine that consists of a bar that pivots at a fixed point called a fulcrum |
Pulley | A simple machine that consists of a wheel over which a rope,chair,or wire passes |
Wheel and Axle | A simple machine consisting of two circular objects of different sizes; the wheel is the large of the two circular objects |