-Rods, Cloths, Bits of Metal, Waxed Floss
-Charging - Static Electricity Interactive The Physics Classroom
-Aluminum Can - Static Electricity Interactive The Physics Classroom
-Balloon and Static Charge PHET
What mechanism
-Rutherford Scattering PHET
-John Travoltage PHET
causes ‘cling’?
-Build an Atom PHET
What affects
the amount of
‘cling’?
Electric Charges, Charging, & Force 1
How does electric force
differ from pushes and pulls?
Charges & Fields PHET
Electric Field Hockey PHET
What practical
problem do you
foresee while
representing the
electric field?
Electric Fields 2
Objects in E-fields
1. How can we describe the field
permeating the surface of an object?
2. How can we describe the field
between two oppositely charged
parallel plates?
3. What is the field within a conductor
in an E-field?
Conductor in Uniform E-field & Gauss’ Law 3
Charges & Fields
PHET
Electric Potential and Potential Energy 4
Make a water and
elevator/staircase
analogy.
Electric Circuits 5
Which tunnel would
you rather crawl
through?
Why?
What if
they were
hot?
Resistors 6
A battery provides a voltage in a circuit,
but it is still an object just like any other.
What else might a battery provide?
Internal Resistance and EMF 7
Hypothesize
how voltage
and resistance
affect current.
Circuit Construction Kit DC
Virtual Lab & Ohm’s Law
phet.colorado.edu
Ohm’s Law 8
Knowing…
1. Ohm’s law
2. The physical quantities involved in electric current
3. What power is in terms of energy
4. The relationship of voltage (potential difference) to electric
potential energy
Kilowatt hour is usually used to
describe electric power. OK?
Derive a quantitative expression
for the ELECTRIC POWER
delivered by a circuit.
Electric Circuit Power 9
Hypothesize how ΔV, R, and I
change in series vs. parallel.
Materials: Circuit Construction Kit DC Virtual Lab
phet.colorado.edu
•
•
•
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Batteries in parallel to a light bulb.
Batteries in series to a light bulb.
Bulbs in series to a battery..
Bulbs in parallel to a battery.
Use analogies to help
Series & Parallel Circuits, Loop & Junction Rules 10
Hypothesize what capacitors do
and how they behave in a circuit
using the Capacitor Lab Phet.
Capacitors and RC Circuits 11
Hypothesize how
AC Circuits work
on Physclips.
http://www.animations.physics.unsw.edu.au/jw/AC.html
How might our
descriptions of
voltage, current,
and power
change?
AC Circuits 12
www.ideaconnection.com
How do magnets work?
Bar Magnet & Iron Filings
Stream of Electrons and a Magnet
Faraday’s Electromagnetic Lab Phet
Faraday’s Law Phet
Magnetic Forces & Fields, Mass Spectrometer 13
What are the
magnetic
properties of
currents?
Current Carrying Wire Magnets 14
Why are bar magnets magnetic?
Solenoids 15
Coil of wire and a magnet
Faraday’s Electromagnetic Lab PHET
Faraday’s Law PHET
Neodymium magnet and copper tube
Magnetic Induction – Faraday, Lenz, Eddy Currents 16
Electric Motor – Torque on a Coil and Back EMF 17
Generators 18
Transformers and the Grid 19