The 4 main parts of a lever are the rod, fulcrum, load, and effort.

Which is a simple machine?

How many classes of levers are there?

You determine what class a lever is by the part that is in the middle.

If the fulcrum is in the middle of the lever what class is it?

If the effort is in the middle of the lever what class is it?

If the load is in the middle of the lever what class of lever is it?

What class of lever is shone in the picture?

A lever is a rigid structure (bone/bar) that rotates around on an axis.

Where is the fulcrum for levers on the human body located?

Force is a push or pull on an object to create movement.

If I put more force on a lever the lever will move the object easier.

This is the quality in matter (matter is anything you can touch) that lets it stay still if it is still, or keeps it moving if it is moving. This is Newton's 1st law.

An example of rotary motion is...