Applications+of+physics


 * Kinetic and Potential Energy

__The DC electric motor__**, remember this? :-) Ours didn't quite work this well, but you get the idea. Remember our motors were different to the one in this video but the physics is the same.

When the copper wire (not magnetic) has an electrical current running through it - it becomes magnetic.

When there is a current flowing in the copper its magnetic field interacts with the magnetic field caused by the magnet.

When the two magnetic fields meet, they interact, and there is a force on the copper wire making it spin.

Look this up in your notes.

media type="youtube" key="3aPQqNt15-o"