1. Notes Science Essential Question(s) How is electricity produced with a magnet and a coil of wire? Tennessee SPI Objective: Recognize that electricity can be produced using a magnet and wire coil. Check for Understanding Create a diagram to explain the relationship between electricity and magnetism. SPI 0807:12.1 Electromagnetic Induction Instructions 1) First click on "View" from the top-menu bar. 2) Then click on "Slide Show" from the drop-down menu. 3) Then use the right-arrow button on your keyboard to advance through this presentation.

2. NN ote: another name for electricity is electrical current Notes Key Ideas and Terms  This process is called electromagnetic induction NN ote: another name for a coil of wire is a solenoid  Magnets and a coil of wire can induce (create) electricity SPI 0807:12.1 Electromagnetic Induction Science Simple Electrical Generator Coil of Wire Bar Magnet

3. Notes  The magnet has to move through the coil Or…the coil has to move through the magnet SPI 0807:12.1 Electromagnetic Induction Science Here is a diagram of electromagnetic induction Here is the solenoid (coil of wire) Here is the magnet Here is a Galvanometer (measures electric current and direction of the current) The bar magnet is pushed back and forth through the solenoid

4. All magnets have an invisible magnetic force field. The magnetic force field pushes the electrons from atom to atom in the wire creating electrical current. Simple Electrical Generator How It Works The bar magnet is pushed back and forth through the solenoid

5. Notes Science SPI 0807:12.1 Electromagnetic Induction Note: in picture 01 the wire coil is stationary and the magnet is moving back and forth  Both diagrams are showing electromagnetic induction Note: in picture 02 the magnet is stationary and the wire coil is rotating Picture 02 Picture 01 Look at the two generators shown below Generators convert mechanical energy into electrical energy (It works either way)

6. Notes SPI 0807:12.1 Electromagnetic Induction Science Simple Electrical Generator Note: in this diagram, the magnet is stationary and the wire coil is rotating. Magnet Wire Coil It also works if the wire is stationary and the magnet is moving

7. Nuclear Power Plant Wind Turbines Hydroelectric Dam Coal Power Plant F.Y.I.-Electromagnetic Induction …is how most electricity is generated around the world. These power plants all use magnets and coils of wire to make electricity

8. F.Y.I.-Electromagnetic Induction …is how most electricity is generated in cars, trains, boats, & planes Electrical Generator (Alternator) Consists of a magnet rotating through a coil of wire Each of these machines has a generator inside that creates electricity

9. Notes Two Ways to Increase the Electrical Current Science SPI 0807:12.1 Electromagnetic Induction (1) Move the magnet faster (2) Add more coils of wire

10. Here is an example of a question you might see on a quiz or test. Questions Science SPI 0807:12.1 Electromagnetic Induction

11. Here is an example of a question you might see on a quiz or test. Questions Science SPI 0807:12.1 Electromagnetic Induction

12. Here is an example of a question you might see on a quiz or test. Questions Science SPI 0807:12.1 Electromagnetic Induction

13. Here is an example of a question you might see on a quiz or test. Questions Science SPI 0807:12.1 Electromagnetic Induction

14. Here is an example of a question you might see on a quiz or test. Questions Science SPI 0807:12.1 Electromagnetic Induction

15. Notes Brainpop Video View the Brainpop video titled "Electricity” Link: Brainpop WebsiteBrainpop Website User name: ----- (ask your teacher for the user name) Password: ----- (ask your teacher for the user name) Task 01: Write down five things that catch your attention as your watch this video Task 02: Complete the Brainpop quiz Science SPI 0807:12.1 Electromagnetic Induction