Question

3. State whether the following statements are true or false. Correct the false statements.
1. A simple machine reduces the work done.
2. A screw is an inclined plane that wounds around a rod.
3. In a lever of III class, the fulcrum is in between load and effort.
4. The maximum efficiency of a machine can be 1.
5. Some devices have two or more simple machines combined together.
6. A wheel and axle' consists of two co-axial wheels of different or same size.​

Answer 1

Answer:

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Explanation:

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