evaluation

Machines make our lives ____

• hard

• difficult

• easier

• funny

There are ____types of simple machines.

• 5

• 6

• 7

• 8

Types of simple machines

• Wheel, lever, pulley and inclined earth

• Chair, lever, pulley

• Wheel, arrow and inclined circule

• Wheel and axle, lever, pulley, inclined plane, wedge and screw

Choose the correct sentence:

• Pulley helps us create some objects.

• Pulley helps us play with some objects.

• Pulley helps us lift heavy objects.

• Pulley helps us move lazy objects.

Examples of simple machines: (choose three)

• Wheel and axle

• Bike

• Pulley

• Wedge

• Train