Electricity
Static Electricity
How Current Works
Ohm's Law
Misc.
100
Define an ion
A gain or loss of an electron (e-)
100
Give an example of friction that results in static electricity
ex. styrofoam
100
define electric current
When like charges flow
100
Symbol for current in Ohm's Law
I
100
Who faced whom in the current war?
Edison (DC) vs. Tesla (AC)
200
Difference between AC & DC
DC is one direction, lower voltage, and better over short distances
200
Define static electricity
Number of like charges accumulates in one area
200
unit & symbol for electric current
Ampere (A)
200
unit symbol for resistance
Omega
200
Draw a series vs parallel circuit
300
What is a schematic drawing and why do we use it?
It is a simplified, symbolic drawing of a circuit that focuses on the relationship between components of the circuit
300
Example of good conductor and insulator
C: Metal I: air, glass, rubber
300
what subatomic particle is flowing in an electric current (include charge)
electron (e-)
300
Page 288 3a
5.06V
300
What pivotal project helped end the war of the currents?
The Niagara Falls Power Project
400
What are the two forms of electricity?
Static electricity and electric current
400
What does grounding mean?
Charge goes from the object to the ground
400
A pressure difference makes fluids flow, ______ difference makes charges flow
voltage
400
Page 288 3c
.129 MA
400
What direction is current flowing relative to how we model it?
Opposite direction and opposite charge
500
Explain how lightning works
Ice crystals cause static electricity to accumulate and a leader forms which travels through ionized air to discharge on the ground.
500
3 ways static electricity can form
1. friction 2. conduction 3. induction
500
Draw parallel circuit with battery and 3 resistors; label current flow (I1, I2, I3, etc.)
500
page 288 3d
28.05 V
500
What does "Westinghoused" mean?
Electrocuted