1. Magnetism

2. Magnets Magnets: -opposite ends attract -like ends repel -most metals attract to magnets -we utilize magnetism and make compasses from Earth’s magnetic field -The Earth is one big magnet with North and South poles. -Magnets can be permanently magnetic or temporarily magnetic

3. Electricity and Magnetism Electricity and Magnetism are Related Electricity flowing through a wire creates a magnetic field around the wire This creates an Electromagnet = A temporary magnet made of iron wire carrying an electric current.

4. Strength of Electromagnet You can increase the strength of an electromagnet by… increasing the number of coils. (a straight wire has a weak magnetic field) increasing the amps of current.

5. Electromagnetic Induction An electric current produces a magnetic field and a magnetic field can produce an electric current *Running electric current through a wire or solenoid wrapped around iron creates a magnetic field or a magnet. EX: electromagnet

6. Electric Charge *Moving a loop of wire through a magnetic field creates an electric charge. EX: Generators or simple motors

7. Generators Generators: produce electric current by rotating a loop of wire through a magnetic field. The rotating magnets are connected to a turbine. The turbines are large wheels that rotate due to steam. The steam is created by the burning of fossil fuels or nuclear power