Grade 3 Unit # 9 Simple machines

Which of these machines uses a wheel and axle?

• Bike

• Tin opener

• See saw

• Screw driver

Which of these machines uses a lever?

• Bike

• Pencil sharpener

• Cart

• See saw

If you wanted to split a log, what machine could you use to help you?

• Screw

• Wedge

• Pulley

• Inclined plane

Force to move an object by pushing or pulling is called:

• Rest

• Play

• Work

• Shove

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Hundreds of years ago, what did people use to make work easier?

• Tools

• Animals

• Simple machines

• All of them

Flag pole is an example of:

• Pulleys

• Inclined plane

• Screw

A light bulb is an example of:

• Lever

• Inclined plane

• Screw

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There are ______ types of simple machines.

• Four

• Eight

• Six

An axe is an example of:

• Screw

• Pulley

• Wedge

A bicycle is an example of:

• Screw

• Inclined plane

• Wheel and axle

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