Vocabulary U12

2. ratio of the output work done by the machine to put input work done on the machine
4. Advantage ratio of output exerted by a machine to the input force applied to the machine
8. plane a sloping ramp up which heavy loads can be raised by ropes or chains
10. a mechanical machine that helps spread or break apart surfaces
11. Machine machine that works with only one movement
13. force the force that you would need to lift the object without the inclined plane

1. machine consisting of a bar free to pivot about a fixed point called the fulcrum
3. device that makes work easier by increasing the force applied to an object by changing the direction or increasing the distance over applied force.
5. force the force which you push or pull an object
6. a mechanical fastener with a threaded shaft
7. a wheel that carries a flexible rope, cord, cable , chain, or a belt on its rim
9. machine a machine that is an combination of two or more machines
10. and axle a simple lifting machine consisting of a rope which unwinds from a wheel on to a cylindric drum
12. transfer of energy when a force is applied over distance