1. ELECTRICTY

3. ELECTRICITY 1. ELECTRONS THAT ARE IN THE OUTER-
MOST ENERGY LEVELS OF ATOMS ARE NOT
HELD TIGHTLY. THEY CAN JUMP FROM ONE
ATOM TO ANOTHER. THESE MOVING
ELECTRONS ARE ELECTRICITY!!!!!!!!

5. 2. CIRCUIT- A pathway for electricity.
2a. CLOSED CIRCUIT – A complete pathway (loop)
with no gaps allowing electricity to flow.
2b. OPENCIRCUIT – An incomplete pathway (loop)
that does NOT allow electricity to flow.

6. 3. SERIES CIRCUIT - THE CURRENT HAS ONLY
ONE PATH IT CAN TRAVEL.

7. COMPARE THE 2 CIRCUITS 4. PARALLEL CIRCUIT- THESE CIRCUITS
CONTAIN MULTIPLE PATHWAYS FOR THE
ELECTRICITY TO TRAVEL.
COMPARE THE
2 CIRCUITS

8. -A CONDUCTOR IS MATERIAL THAT
ALLOWS ELECTRONS TO MOVE EASILY
THROUGH IT. EXAMPLES . . .
-AN INSULATOR IS A MATERIAL
THAT DOESN’T ALLOW ELECTRONS
TO MOVE THROUGH IT EASILY. EX. .

9. 5. ELECTRICITY FLOWS FROM AN AREA
OF HIGHER POTENTIAL ENERGY TO AN
AREA OF LOWER POTENTIAL ENERGY.
6. THE DIFFERENCE IN POTENTIAL BETWEEN
TWO DIFFERENT PLACES IS CALLED
POTENTIAL DIFFERENCE. IT IS MEASURED IN
VOLTS.

11. 7. CURRENT - THE FLOW OF ELECTRONS
THROUGH A CONDUCTOR FROM HIGH TO LOW
POTENTIAL ENERGY. MEASURED IN AMPS.
8. RESISTANCE- OPPOSITION (against) TO THE
FLOW OF ELECTRICITY. MEASURED IN OHMS.

12. -RESISTORS CAN BE USED TO CONTROL THE
FLOW OF ELECTRONS. TOASTERS & HAIR
DRYERS USE RESISTANCE TO HEAT UP WIRES.

13. 9. Ohm’s Law – The relationship between voltage,
current and resistance.
The formula for Ohm’s Law is
resistance = voltage / current
-What is the relationship between resistance
and current?

15. E L C T R I Y S T
A T I C

16. STATIC ELECTRICITY is the
gathering of electric charges on an
object.
11. An electric force exists between objects
that have an electric charge.

17. -THE ELECTRIC FORCE CAN BE ATTRACTIVE OR
REPULSIVE. OPPOSITELY CHARGED OBJECTS
ATTRACT WHILE OBJECTS WITH LIKE
CHARGES REPEL.

18. -Coulomb’s Law explains electric force. The law can be
broken into two parts:
a.The larger the charge of the objects, the
bigger the electric force between them.
b. The the distance between the two objects increases,
the smaller the electric force between them.

19. 12. Charge can be built up in one location by three
different methods:
a. Friction – Charging by rubbing two surfaces
together.
b. Induction – Charging without touching
-Like a shock from a tv that you haven’t even
touched.

20. c. Conduction – charging by touching.