1. ~ 5/16/17 ~
Objective #31: I can explain the 2 types of electricity, how they work, & the dangers involved.
CHECKPOINT #6:
What is electricity?
What are the 2 types of electricity?
Where does each type of electricity come from?

2. Electricity

3. electricity
energy associated with the flow (movement) of electrical charges
energy associated with
the concentration (static)
of electrical charges

4. static electricity gathering of excess electrical charges
static = unmoving, not doing work (potential)
static discharge results when charge jumps gaps (i.e., cloud to ground lightning) creating a spark

5. current (I) the rate that electric charges move through a conductor
measured in amperes (amps)

6. The amount of energy passing a point per a unit of time.
AMPERES
The amount of energy passing a point per a unit of time.

7. current electricity movement of electrical charges through a conductor
2 forms:
direct current
alternating current

8. direct current (DC)
current electricity that flows in only 1 direction; i.e., from a battery, current flows from the negative terminal to the positive terminal

9. alternating current (AC)
current that flows in first in one direction and then in the opposite direction
electric charges move back and forth in a conductor
i.e., electricity from wall outlet reverses 60 Hz (60 cycles per second)