Question

B.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 efficient machine can be 1.
5. Some devices have two
ore simple machines combined together.
6. A wheel and axle' con
co-axial wheels of different or same size​

Answer 1

Answer:

1. true
2. true
3. false
4. false
5. true
6. false

Answer 2

1  -  false

2 - true

3 - false

4 - false

5 - true

6 - false