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Electricity: Magnetism

Electricity: Magnetism. Jeopardy. Laws of Electrical Charge Name one law Name the second law Name the third law When electric charges are purposely sent into the earth. Circuits This is a circuit with only one pathway. This is the name given to a circuit that i s switched off.

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Electricity: Magnetism

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  1. Electricity:Magnetism

  2. Jeopardy Laws of Electrical Charge Name one law Name the second law Name the third law When electric charges are purposely sent into the earth. Circuits This is a circuit with only one pathway. This is the name given to a circuit that is switched off. These three things are needed to power an electric appliance. This is a circuit with multiple pathways. Electric Flow This object allows electricity to flow through it This is the name of objects that do not allow electricity to flow This is the name for moving electricity This is name for electricity that does not move Particle Charges This particle has a negative charge. This particle has a positive charge This is what it is called when a charged object loses its charge This is the charge of MOST objects 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400

  3. Magnetism About 2500 years ago in Magnesia… • Magnetism—something that attracts or repels iron • Electric currents also produce magnetism • We call this electromagnetism

  4. experiment We will need a: • Circuit • Cell (battery) • Core—an iron object What do you think will happen? How will increasing coils affect it?

  5. electromagnetism • Electromagnets are used to power high speed trains This Maglev train, in Yamanashi Japan (2005), uses electromagnetism instead of wheels or bearings.

  6. electromagnetism • Electromagnets power cranes in scrap yards • Electromagnets are also used in doorbells, telephones, and electric motors. Why would scrap yards use electromagnets instead of normal cranes?

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