1. Energy Changes Forms

4. Energy Changes Forms Electrical Changes to Light and Heat

5. Question to consider…

6. Sound

7. Motors

9. Examples in the Garage Leaf blower Garage door Lawn mower Car Motorcycle

10. Examples in the House Can opener Mixer Blender Vacuum cleaner Air conditioner Washing machine Dryer Ceiling fan Fan Pencil sharpener

11. Other Examples

12. Anatomy of a Motor Source of Electricity (like a Battery) and a Magnet

14. Making a DC motor

17. Sand only half of the wire

18. Making a DC motor

20. If Your Motor Doesn’t Run Don’t get upset, troubleshoot the problem. You will probably learn more if your project does not work perfectly from the start. Make sure:  All the connections between the battery and the motor are solid.  The armature wire is as straight as possible.  The enamel has been sanded properly, half the diameter on one side and around the entire wire on the other side.

21. Further Experimentation Once you have a project working, it is fun and educational to try new adjustments to try to improve performance. Sometimes what you try might not work as well. You might consider: Make a new armature/coil with more or fewer windings. Adjust the gap between the magnet and the edge of the coil to be less but not touch at anytime. Try a stronger magnet such as a neodymium magnet.

22. Looking at Cross Section of Wire for Half Sanded Side Enamel Coating Copper Wire