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S8P3.c
demonstrate the effect of simple machines
Question | Answer |
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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 an that moves; often used for cutting |
screw | simple machine that consists of an in plane wrapped around a cylinder |
lever | a simple machine that consists of a bar that pivots at 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 |