Students will describe how a generator produces an electric current from the interaction of magnetic and electric field lines; they will illustrate the lines too. Students will investigate applications of magnetism and its relationship to the movement of electrical charge as it relates to electromagnets, simple motors, and permanent magnets.
Here are you notes.
This video is about electromagnetism.
Source: various educators and Langhans
Simple, but good description of how a generator works.
Source: from eHow, Steve Jones
1. Explain how an electromagnet works.
2. If you decrease the battery voltage, what happens to the strength of the electromagnet?
3. What is a solenoid?
4. Where in the real world do you see electromagnets?
5. Explain how a generator uses electromagnetism.
6. Why do we use generators?
7. How do you make a stronger electromagnetic field?