Electroscopes
S1-03-05
Explain electrostatic phenomena using the particle model of electricity.
An ELECTROSCOPE is a device that can be used to DETECT CHARGES.
When you bring a CHARGED rod NEAR a NEUTRAL electroscope, the LEAVES of
the electroscope will R
Electric Potential Energy (Voltage)
S1-3-10
Define voltage (electric potential difference) as the energy per unit charge between two
points along a conductor and solve related problems. Include: V = E/Q.
If you had two ELECTRONS, what would happen if you
Previous Models of Static Electricity
S1-03-02
S1-03-04
Discuss the early models of electricity. Include one-fluid model, two-fluid model, and the
particle model.
Relate the particle model to atomic structure.
There were many different models that attempt
Algebra Review
In the next part of the unit, we will be solving equations relating to electricity. In
order to do this, we need to be able to do a little bit of algebra.
Solving for an Unknown
We must be able to REARRANGE an equation to solve for an UNKNO
Electric Potential Difference (Voltage)
S1-3-10
Define voltage (electric potential difference) as the energy per unit charge between two
points along a conductor and solve related problems. Include: V = E/Q.
When a charge is moved from one point to anothe
Particle Model of Electricity
S1-03-03
S1-03-05
Explain attraction of neutral objects using the particle model of electricity.
Explain electrostatic phenomena using the particle model of electricity.
Review of conductors and insulators
1. Conductors:
- Co
Electrostatics Introduction
S1-03-01
Demonstrate evidence for the existence of two types of charge
Scientists discovered that when they rubbed different MATERIALS against each
other, they ATTRACTED other MATERIALS.
they called these materials CHARGED
The
Resistance
S1-3-12
Describe resistance in terms of the particle model of electricity.
In a Circuit:
-Electrons are MOVING.
-As they move through the CONDUCTOR, they are BUMPING into the
ATOMS in the CONDUCTOR (wire, light bulb, motor, etc.)
-When the elec
Voltage, Current and Resistance in Circuits
S1-3-15
S1-3-16
S1-3-17
Compare and contrast voltage (electric potential difference) and current in series and
parallel circuits. Include: cells, resistance.
Investigate and describe qualitatively the relationsh
Reading Hydro Meters
S1-3-22
Analyze the electrical energy consumption of a household appliance. Include: calculate consumption using
Energuide labels, read hydro meter, interpret monthly hydro bill.
Electrical power is made at HYDRO GENERATING stations i
Electric Power, Consumption and Cost
S1-3-21
Develop a formula for domestic power consumption costs, and solve related problems.
Include: Cost = Power(Kw) x time (hr) x Price ($) .
In order to sell electrical POWER, we must have a way of calculating the
C
Power
S1-3-20
Define electrical power as energy per unit time, and solve related problems. Include: P =
E/t.
James Watt (1736-1819):
Improved the efficiency of the STEAM ENGINE. He tried to describe the
POWER of these engines by comparing them to HORSES.
Diagramming Circuits
S1-3-13
Construct electric circuits using schematic diagrams. Include: series, parallel.
For current electricity to occur, we must have a CIRCUIT - a PATHWAY for
electricity to FLOW.
The Parts of an Electric Circuit
1. Energy Source:
Sources That Generate a Potential Difference
S1-3-11
Identify the five sources of electrical energy and some associated technologies.
Include: chemical, photo, thermo,electromagnetic, piezo.
1. Chemical Potential Difference:
- Caused by a CHEMICAL REACTIO
Static Electricity in Everyday Life
S1-03-06
Investigate common electrostatic technologies and phenomena and describe ways to reduce
dangers associated with electrostatics.
Lightning:
- The FRICTION of the clouds rubbing together causes the BOTTOM of a
cl