Unit 12- Electricity and Magnetism
Alignment with KY Program of Studies: Electricity and Magnetism
By the time you finish this unit you should be able to:
1. Understand the 4 states of charge: + charge, - charge, neutral and polarized.
2. Understand 3 ways of charging an object : friction, conduction, induction
3. Distinguish between conductors and insulators.
4. Use Coulomb’s Law to represent the relationship between electric force, charge and distance of separation.
5. Recognize the similarities and differences between Coulomb’s Law and the Law of Universal Gravitation.
6. Understand the concepts of Electric Field, Electric Potential (ie Voltage), current and resistance.
7. Understand Electromagnetic induction -- Inducing a Voltage
Kentucky Core Content: Electric force. The electric force is a universal force that exists between any two charged objects. Opposite charges attract while like charges repel.
Conductors and insulators. In some materials, electrons flow easily, whereas in insulating materials, they can hardly flow at all. Semi-conducting materials have intermediate behavior. At low temperatures, some materials become superconductors and offer no resistance to the flow of electrons.
Core Content: Electromagnetic force. Electricity and magnetism are two aspects of a single electromagnetic force. Moving electric charges produce magnetic forces and moving magnets produce electric forces.
Interesting Links
Forces and Fields
Glenbrook Static Electricity http://www.glenbrook.k12.il.us/gbssci/phys/Class/estatics/u8l4c.html
Interactive force field http://www.anu.edu.au/physics/courses/Physics2000/applets/nforcefield.html
Practice Conceptual Questions http://online.cctt.org/physicslab/content/nexttime/nt_potentials.asp
Circuits
Example Circuit Problems http://www.physics.uoguelph.ca/tutorials/ohm/Q.ohm.examples.html
Practice Conceptual Problems http://online.cctt.org/physicslab/content/nexttime/nt_circuits.asp
Overall Electricity and Magnetism
AP Physics Electricity and Magnetism Links
Hypertextbook http://hypertextbook.com/physics/electricity/