2. CURRENT ELECTRICITY
The energy of moving charges
(flow of electrons)

3. PERMANENT SOURCES
Large amounts of electrical power
produced by Generators. (power plants)

4. TEMPORARY SOURCES - Small amounts of
electrical power produced by Cells. (batteries)
ELECTROCHEMICAL CELL - Battery that produces
energy through a chemical reaction. (disposable)

5. TEMPORARY SOURCES - Continued
STORAGE CELL
Battery that needs to be charged in order to
produce energy. (rechargeable)

6. What is Current Electricity?

7. Current Electricity: the flow of
electrons along a pathway (wire) from
negative to positive.
Negative

8. Circuit: (from the root word circle) A
pathway for electrons that ends at the
same point it starts.
Negative

9. Complete or Closed Circuit: A circuit
in which electrons can flow and
complete the path from the negative
to the positive terminal of the
battery.
Negative

10. Incomplete or Open Circuit: A
circuit in which electrons cannot
flow and therefore cannot complete
the path between the negative and
positive terminals of the battery
because of openings or breaks.

11. Incomplete or Open Circuit

12. Electrical Device: any item used in an
electric circuit.

13. 1. Load:(L) An electrical device that
uses or resists electricity.

14. 2. Non-Load:(NL) An electrical device
that does not use electricity and does
not have any resistance.

15. 3. Safety Devices: (SD) a non-load
electrical device that controls the
circuit.

16. CONDUCTOR - any material that
allows electrons to flow. (metals)

17. NON-CONDUCTOR - any material
that prevents electrons from
flowing (non-metals)