Simple Machines

Which of these is an example of a simple machine?

• A broom

• A hair dryer

• A lawnmower

• An elevator

An ax is used to chop or split wood into two smaller pieces. Which simple machine is the head of the ax?

• lever

• screw

• wedge

• incline plane

When you turn the knob on a door, a rod on the inside releases a latch. Which simple machine is the door knob?

• pulley

• wheel and axle

• lever

• screw

A wheel and rope is used to raise or lower a flag. Which simple machine is the wheel and rope?

• lever

• screw

• wheel and axle

• pulley

What two parts might make a pulley?

• wheel and wire

• wheel and axle

• wheel and screw

• wheel and fulcrum

Which type of simple machine would be used a the bottom of a wagon to allow the wagon to move easier?

• a pulley

• a wedge

• a screw

• a wheel and axel

Tags

NGSS.MS-PS2-2

Which of these is NOT an example of an incline plane?

• ramp

• stairs

• wall

• driveway

Which is a characteristic of a simple machine?

• They take a long time to make.

• They have few or no moving parts.

• They run on electricity.

• They are not very large.

How many different types of simple machines are there?

• 4

• 6

• 8

• 10

A simple machine that is made up of two incline planes back to back and is used to separate something.

• incline plane

• screw

• wedge

• lever