1. Today’s Agenda…11/17 Bellringer: Worksheet
Review Note-taking Worksheet & Discuss
Notes on Electric Current Part I

2. Electric Current Part I
Study Pack #10

3. Review A material through which electrons can move easily is a _____.
A. conductor
B. insulator
C. nucleus
D. electromagnetic

4. Review
Each of the following is an example of an insulator except _____.
A. wood
B. copper
C. glass
D. rubber

5. Review An atom has equal numbers of protons and _____. Neutrons
Electrons
Ohms
Volts

6. Review Every proton and electron is surrounded by a(n) _____.
A. electric circuit
B. electric field
C. insulator
D. magnetic pole

7. Today’s Goals… I can describe how an electric current flows.
I can explain how electrical energy is transferred in a circuit.
Study Pack #10
Page 201

8. What do you know? True or False
In a wire there is an electric current when protons in the wire move along the wire.
The unit for electric current is the ampere.
Electric currents will flow when a switch is open.
Batteries can produce an electric field that makes electric charges flow.

9. What is an electrical current?
The flow of electrical charges
Electrons move along the wire

10. Unit for Current
The amount of electrical current in a wire is the amount of charge that flows into and out of the wire every second
The unit for current is the ampere, A
1 ampere of electric current means about six billion billion electrons flowing into and out of the wire every second

11. A Simple Electric Current
Electric energy can be transformed into heat, light, and sound energy
To watch tv energy must be constantly transformed
The electric current must be kept flowing

12. A Simple Electric Current
Electric current will flow continually in a CLOSED path called an electrical circuit

13. A Simple Electric Circuit
An electrical circuit is made up of:
wire, which connects the parts together
an energy source, such as a battery
a receiver, such as a fan, lightbulb, or motor
a switch (not required)

14. A Simple Electric Current
Current flows as long as the switch is closed
When the switch is open, current no longer flows
If one of the wires are cut or the light bulb is unscrewed the current will not flow

15. Making Electric Charges Flow
A force must be exerted on electric charges to make them flow
Force is exerted on an electric charge by an electric field
There is an electric field in the circuit that will move electrons in a single direction

16. Making Electric Charges Flow
A battery can produce an electric field
Electrons flow from the negative end to the positive end

17. What did you learn? True or False
In a wire there is an electric current when protons in the wire move along the wire.
The unit for electric current is the ampere.
Electric currents will flow when a switch is open.
Batteries can produce an electric field that makes electric charges flow.