Work & Levers

The place where a lever pivots is called the _______.

• tissue

• pivot point

• fulcrum

• flexible joint

T or F: We use levers to make work easier.

• True

• False

T or F: Simple machines lesson the amount of work that we have to do.

• True

• False

A seesaw is an example of a ______.

• wedge

• wheel and axle

• lever

• screw

There are ____ types of simple machines.

• 3

• 5

• 8

• 6

If you want to decrease the effort force when using a lever, where will you move the fulcrum?

• move the fulcrum closer to the load

• move the fulcrum in the middle of the lever

• move the fulcrum far from the load

• none, there is no way to make it easier

What are the 3 main parts of a lever?

• load, fulcrum, wedge

• fulcrum, lever, load

• fulcrum, load, rigid bar

• lever, fulcrum, rigid bar

When you kick a ball the fulcrum is your ..

• foot

• knee

• calf

• thigh

Name this type of simple machine

• wedge

• lever

• inclined plane

• axle

T or F: Pushing a heavy piece of furniture and it not moving is an example of work.

• True

• False