Here are the key points about how electricity flows through a house: - Electricity flows through wires. Copper wire is commonly used to carry electricity throughout a home as it is a good conductor. - The electricity enters the house through the main electrical service panel or breaker box. This is where the electricity from the power lines outside connects to the home's internal wiring system. - From the main panel, copper wiring runs through walls and ceilings to distribute electricity to various outlets and switches throughout the different rooms. - Electricity flows in a closed loop called a circuit. It travels from the power source (main panel), through the wires, to devices like lights and appliances, and back to the main panel to

1. ELECTRICITY AND
MAGNETISM

2. 1. What does this diagram represent?
2. What are the red and blue circles?
3. What charges do those particles
have?
4. What do the black circles
represent?
5. What is the charge of this particle?
1. An atom
2. Protons and neutrons (a nucleus)
3. Protons are positive, neutrons are
neutral
4. Electrons
Questions
Answe
rs

4. + -
+ +
Rules: Opposite Charges Attract
Like Charges Repel
- -

5. • A material in which electrons cannot move easily
from place to place is called an insulator.
• Examples of insulators are plastic, wood, glass, and
rubber.
Insulators and Conductors

6. • Materials that are
conductors contain
electrons that can move
more easily in the material.
• The electric wire is made
from a conductor coated
with an insulator such as
plastic.
Insulators and Conductors

7. • The best conductors are
metals such as copper, gold,
and aluminum.
• When metal atoms form a
solid, the metal atoms can
move only short distances.
• However, the electrons that
are loosely bound to the
atoms can move easily in the
solid piece of metal.
Metals and Conductors
• In an insulator, the
electrons are bound
tightly in the atoms that
make up the insulator
and therefore cannot
move easily.

8. TYPES OF ELECTRICITY
• Static • Current

9. Static
Electricity
is the buildup of
electric charges
on an object

10. Why should we think about static
electricity?

11. Static
Discharge
is the release of
static
electricity when two
objects touch
How to react to a gas
station fire!

12. https://www.yout
ube.com/watch?
v=L1HhRAUqFq
M&t=5s

13. BILL NYE -
ELECTRICI
TY

14. Ticket out the Door: NIKOLA TESLA
•Read/Highlight the Article
• Who is Nicolas Tesla?
• What are some of the things he
experimented with?
• How did Thomas Edison play a
role in Tesla’s career?
• What were his contributions to
the world and how did they
impact modern technology?

15. https://
www.y
outube
.com/w
atch?v
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IWfYyo

16. ELECTRIC CURRENT IS THE FLOW OF
ELECTRIC CHARGE.
Electrons move
towards
positive charge.
Current moves
towards
negative charge.

17. OPEN AND CLOSED CIRCUITS
•Closed circuit allows for the current to flow and for the
components to work in the circuit. The light is on!
•Open circuit is where there is a break in the current
and it is unable to flow. The light is off!

18. Once the circuit is closed, the electrons will
flow towards the positive end. Remember
opposites attract!

19. SERIES CIRCUIT VS PARALLEL CIRCUIT

20. SERIES VS PARALLEL

21. SERIES CIRCUIT PARALLEL
CIRCUIT
•Single path for flow of
electric current
•Current is the same
throughout the circuit
•Multiple paths for flow of
electric charge
•Voltage is the same
throughout the circuit

22. Series Circuit Parallel Circuit
Number of paths
for flow of current
1 Multiple
Removing a bulb Other bulbs go out Other bulbs
remain lit
Adding bulbs Lights become
dimmer
Lights remain
bright
Same throughout
the circuit
Current Voltage

23. TWO TYPES OF CURRENT
DC – DIRECT
CURRENT
•Charge flows in
only one direction
•Batteries - DC
AC – ALTERNATING
CURRENT
•Charge regularly
changes direction
•Power plant - AC

24. DIRECT CURRENT ALTERNATING
CURRENT

25. https://www.yo
utube.com/wat
ch?v=SAvYvfg
41FU

26. Questions
1.What type of circuit is shown in the diagram?
2.What type of current does this circuit have? How do you
know?
Answers
1.Series circuit / single path for current
2.DC / battery is voltage source

27. 1. Which circuit is a parallel circuit?
2. Which circuit is a series circuit?
3. Which circuit would the current be the same through each light bulb?
4. If the one light blew what would happen to the other lights?
A
B

28. TICKET OUT THE DOOR
•Explain in a paragraph is it better to wire a house using
series circuits or parallel circuits?
•Think about your house and what happens if a breaker
flips? Do all the lights go out or just some?

29. PHET CIRCUITS

30. EDPUZZLE ELECTRICITY

31. OHM’S LAW: V = IR
Quantity Variable Unit
Voltage V V (volts)
Current I A (amperes)
Resistance R Ω (ohms)

32. V
I R
Ohm’s
Law
V=IR

33. V = VOLTAGE – VOLTS (V)
• Charge flows spontaneously from area
of higher electrical potential energy to
lower potential energy
• Voltage is the “Push.”
A battery is
a voltage
source.

34. I = CURRENT – AMPERE (A)
Is the rate at which charge
flows.

35. R=RESISTANCE – OHMS
(Ω)
• Is opposition to the flow of electrical
charge.
• “Electrical Friction”
• Long, thin wires, more resistance

36. Increasing R will
______________ I
Increasing V will
______________
I
To increase I, then
_____________
R or
____________ V
decrease
increase
decrease
increase

37. OHM’S LAW PRACTICE
• Voltage = V = volts (v)
• Current = I = amps (a)
• Resistance = R = ohms
(Ω)
V
I R

38. V =
IR
I = 4
A
R = 2
Ω
V = (4 A )(2 Ω)
V = 8 V
V
I R

39. V = 12
V
R = 2 Ω
I = 6
A
V
I R
I = V/R

40. CIRCUIT DIAGRAMS

41. ELECTRICITY CIRCUIT
PROJECT

43. Bellringer
How does electricity flow
through your house?
What carries the
electricity?