Simple Machines

The purpose of a simple machine is to make work easier by allowing for a push or pull to occur over an increased distance.

• True

• False

Why are levers useful?

• For seesawing

• Allow us to measure the force of an object

• Helps lift weight at one point of its length

• All of the above

Which of the items lifted below can be considered a wedge?

• A Pencil

• A hammer

• An axe

• Two inclined planes put together

Why are simple machines "simple"?

• They reduce the effort required to perform a simple task. Less force can be applied.

• They are actually quite complicated.

• You can easily put two pieces of wood together.

• Splitting through wood is much faster.

Which simple machine is this?

• Pulley

• Wheel-and-axle

• Inclined Plane

• Lever

Where might a screw be used?

• A bottle cap

• A Lightbulb

• Cell Phone Charger

• All of the above

Which simple machines are present?

• Wedge

• Wheel-and-axle

• Inclined Plane

• Lever

A seesaw is an example of a

• wedge

• lever

• inclined plane

• pulley

Stairs is a kind of a/an

• wedge

• pulley

• inclined plane

• wheel and axle

Lightbulb is a kind of a/an

• wedge

• pulley

• incline plane

• screw