Simple Machines

A lever lessens the effort of lifting a load by using a fulcrum.
A pulley lessens the effort needed by using the rope and pulley.
The inclined plane lessens the effort needed by increasing the distance to move the object.

Questions to answer:

1. Give an example of a lever that you use in everyday life.

2. Give an example of a pulley that you use in everyday life.

3. What are inclined planes used for? Give examples of how we use it.

4. In the video, what lessens the effort to lift the box?

5. Give me a brief summary of the video that you watched.

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