Some simple machines are…

• Pulley, inclined plane, wheel, lever

• Pulley, complex machines, lever

• Pulley, lever, robots, cars

Is it a bicycle a simple or complex machine?

• Simple

• Complex

What simple machines does a bicycle have?

• Pulley, inclined plane

• Wheels, pulley

• Inclined plane, lever

Draw a lever:

Machines are simple or…

Look at the image, this is a…

• Wheel

• Lever

• Pulley

What is the name of these simples machines?

• Pulleys

• Levers

• Inclined planes

• Wheels

What energy does this machine ende to work?

• Electricty

• Batteries

• Energy from people

The knive is…

• A simple machine

• A complex machine

• A battery

What energy does it need?

• Electricity

• Batteries

• Energy from people