Question

Classify the following as a lever, a pulley and an inclined plane:
A wedge, a needle, a staircase, a slide, the wheel of a flagpole, nutcrackers, scissors, an opener, an axe, a crane, a knife.

Answer 1

Classify the following as a lever, a pulley and an inclined plane:

1. A wedge is an inclined plane,

2. A needle is inclined plane,

3. a staircase is a inclined plane,

4. a slide is an inclined plane,

5. the wheel of a flagpole is a pulley,

6. Nutcrackers are levers,

7. Scissors are levers,

8. an opener is a pulley,

9. an axe is an inclined plane ,

10. a crane is a pulley,

11. a knife is an inclined plane.