Simple Machines

A simple machine is a tool that helps people do work.

• true

• false

Is a pulley a simple machine?

• no

• yes

Which simple machine is a kind of inclined plane?

• pulley

• screw

• lever

• wheel and axle

A simple machine can increase the amount of force you have to use.

• true

• false

A compound machine is several simple machines put together?

• true

• false

What simple machines form scissors?

• 2 wedges and 2 levers

• 3 levers and 1 wedge

• 1 wedge and 1 lever

• 4 levers and 2 wedges

Is a ramp a simple machine?

• no

• yes

A pulley keeps the direction of the force constant.

• yes

• no

How many simple machines are there?

• 4

• 7

• 3

• 6

A wedge is three inclined planes.

• true

• false