This machine has one or more slanting edges. We use it to cut things or push things apart.

This machine has a flat slanting surface. We use it to push objects to a higher place more easily.

This machine has a rope and a wheel and axle. We use it to lift heavy objects.

We use this simple machine to move objects on the ground from one place to another more easily.

This machine is an inclined plane that goes around a cylinder and is used to hold things together or to lift things.

This machine has a rigid bar which is placed on a support called a fulcrum.

The fulcrum is between the effort and the load.

The load is between the effort and the fulcrum.

The fulcrum is at one end. The effort is between the fulcrum and the load.

Which of the following is a class 1 lever?

Which of the following is a class 2 lever?

Which of the following is a class 3 lever?

What energy source does a sailboat use?

What energy source does a bicycle use?

What energy source does a airplane use?

What energy source does a TV use?

Which type of machine transforms electricity or fuel into kinetic energy? (Kinetic energy = movement)

Which type of machine makes things hot or cold?

Which type of machines are used for communication and for making calculations?