Simple Machines Unit Test Review

I am a shaft or rod and I help a wheel turn. What am I

What is effort?

• any push or pull

• a grove in the rim in which a rope can move

• a point for a lever to pivot

• something to move or life

Friction is when.....

• an axle rolls

• a force that resists motion between two objects

• a force allows two objects to stick together

A bar resting on a fulcrum. What am I?

I help wheelchairs move up and down easily. What simple machine am I?

• Lever

• Pulley

• Inclined Plain

• Wedge

What class of lever is this?

• First Class

• Second Class

• Third Class

This simple machine has a rope that will help you lift a load.

• Wedge

• Inclined Plane

• Screw

• Pulley

The load is between the fulcrum and effort. What class of lever is this?

• First

• Second

• Third

I am an ax. I help split things apart. What simple machine am I?

This is a _________________ class lever

• First

• Second

• Third