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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 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 inclined planes 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 |
Wheel and axle | A simple machine consisting o two circular objects of difference sizes; the wheel is the large of the two circular objects. |
Pulley | A simple machine that consists of a wheel over which a rope, chair, or wire passes. |