Name this simple machine.
Pulley
Give two examples of a wedge.
Axe and
Give two examples of a wheel and axle.
Bike wheel and
Name this simple machine.
Inclined plane.
Give two examples of a pulley.
Flagpole and
Give two examples of an inclined plane.
Slide and
Give two examples of a lever.
Scissors and ...
Name this simple machine.
Screw
What do we call the middle part of a lever?
Pivot or fulcrum.
Give two examples of a screw.
Screw and ...
Name this simple machine.
Wheel and axle.
How many simple machines are there?
6
Name this simple machine.
Lever
Name this simple machine.
Wedge.
Why do people use simple machines?
To make work easier.