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1) Simple machines include the lever, inclined plane, screw, wedge, wheel and axle, and pulley. They make work easier by changing the direction or magnitude of force. 2) A simple machine does not reduce the total amount of work done, but allows work to be done more easily using less force over a greater distance. 3) The mechanical advantage of a simple machine is the ratio of load to effort and indicates how much easier the machine makes work. It is calculated based on the relative lengths of the load and
- Author
- Deepa
- Language
- EN