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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 to do work by either overcoming a force or changing the direction of the applied force |
inclined plane | a simple machine thats a straight, slanted surface, which facilitates the raising of loads- a ramp |
wedge | a simple machine that is made up of 2 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 a rope, chair, or wire passes |
wheel & axle | a simple machine consisting on 2 circular objects of different sizes- the wheel is the largest of the 2 circular objects |