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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 a straight, slanted surface, which facilitates the raising of loads; a ramp |
Wedge | a simple machine that is made up of two inclined 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. |