1. Electricity and Magnets

2. Magnets

3. Magnet Review
Magnets are created naturally by a mineral called lodestone.
Magnets can also be created with electricity flowing through an insulated wire wrapped around a piece of iron.
Magnets are attracted to materials made from iron and steel.

4. Magnets

5. Magnets Magnets attract or repel each other.
Attract- to pull toward one another
Repel- to push away from one another
Magnets have 2 poles: North and South
Like poles will repel and unlike poles will attract.

6. Magnets Two types of Magnets:
Permanent-iron-bearing metals; magnetic force extends from poles in an arched pattern
The magnetic field defines the area where magnetic force is exerted.

7. Magnets
2) Electromagnet- created by electric current; magnetic force extends from poles in an arched pattern.

8. Electricity

9. Electricity
Electricity results from the flow of electric charge such as lightning, static electricity, and the flow of current electricity in an electrical wire.
Current electricity is a continuous flow of negative charges (electrons) through a medium.

10. Static Electricity
Rubbing certain materials together creates static electricity, or an accumulation of negative charges on the surface of a material.
The “shock” associated with static electricity is the movement of electrons to rebalance the charge of a material.
Some materials will attract or repel, based on if one or both have lost or gained a negative charge (electrons).
Lightning is a discharge of static electricity.

11. Insulators and Conductors
Conductors are materials that allow electrical energy to move through them easily.
Examples: metals
Insulators are materials that slow or prevent the movement of electrical energy.
Examples: rubber, plastics, wood

12. Circuits

13. Circuits
Open Circuits prevent electricity from flowing through a path with a break in the circuit.
Closed Circuits allow electricity to flow through a path.
Parallel Circuits have multiple/ two or more paths for electricity to travel through.
Series Circuits have single paths for electricity to travel through; usually end to end.

14. Electrical Energy
Common household appliances transform electrical energy into thermal (heat), radiant (light), and mechanical (movement) energies.
A moving magnetic field generates electricity.
An electric current creates a circular-moving magnetic field that creates electric current.

15. Electricity Pioneer Scientist/Innovator Benjamin Franklin
Contribution-
proved lightning is static electricity
developed lightning rod

16. Electricity Pioneer Scientist/Innovator Michael Faraday Contribution
discovered electromagnetism
created first electric motor

17. Electricity Pioneer Scientist/Innovator Thomas Edison Contribution
created long-lasting, incandescent light bulb
developed alkaline battery (intended to power a car)