Download Physics Module on Electricity and Magnetism at

ELECTRICITY INVESTIGATION (WEB)
Use the Internet to follow some basic tutorials on electricity
Physics Module on Electricity and Magnetism at:
http://ippex.pppl.gov/interactive/electricity/default.htm
Do all the modules at this site!
Simulation of electric forces
http://www.colorado.edu/physics/2000/waves_particles/wavpart2.h
tml
Simulation of fields
http://www.colorado.edu/physics/2000/waves_particles/wavpart3.h
tml
Simulation of electric motor
http://www.walter-fendt.de/ph14e/electricmotor.htm
AC vs. DC current
http://www.school-for-champions.com/science/ac.htm
How a generator works and how energy is transmitted
http://www.energyquest.ca.gov/story/chapter06.html
http://www.energyquest.ca.gov/story/chapter07.html
Lesson 3 Chap 11-14 Electricity with tutorials and sample quizzes
http://library.thinkquest.org/10796/
The motor effect (part of our lab)
http://www.exploratorium.edu/snacks/motor_effect.html
USE YOUR WEB TUTORIALS AND READING TO EXPLAIN
THESE CONCEPTS!
ELECTRIC CHARGE
ELECTROMAGNETIC FORCE
ELECTROMAGENTIC FIELD
POTENTIAL DIFFERENCE (VOLTAGE)
CURRENT
DC/AC
MOTOR
GENERATOR
RESISTANCE
POWER
CIRCUIT
ELECTRICITY QUESTIONS:
Conceptual Challenge page 637
1. The electric force is significantly stronger than the gravitational
force. However, although we are attracted to Earth by gravity, we
do not usually feel the effects of the electric force. Explain why.
2. An ordinary nickel contains about 1024 electrons, all repelling
each other. Why don’t those electrons fly off the nickel?
3. When the distance between two charged balloons is doubled, by
what factor does the repulsive force between them change?
Read Sec 19-1 Do Section Review pg 699
1. Can the direction of conventional current ever be opposite the
direction of charge movement? If so, when?
2. The charge that passes through the filament of a certain light
bulb in 5 sec is 3 Coulombs.
a) What is the current in the light bulb? B) How many
electrons pass through the filament of the light bulb in 1 min (60
sec)?
3. In a conductor that carries a current which is less, the drift speed
of an electron, or the average speed of the electron between
collisions?
4) What are the functions of batteries and generators?
5) In direct current, charge carriers have a drift velocity, but in
alternating current, there is no net velocity of the charge carriers.
Explain why. Why does this help explain why batteries wear out?