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S8P3.c
Describe the effect of simple machines at 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 force or change the direction of the applied force |
inclined plane | a simple machine that is, straight, slanted surface, which facilities the raising of loads; 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 axis | a simple machine consisting of two circular objects of different sizes; the wheel is the larger of the two circular objects |