1. Go With the Flow

2. TSWBAT:
Demonstrate an
understanding of Static
Electricity, Current and
Circuits

3. Key Objectives:Key Objectives:
Identify the two types of
electrical circuits
– Parallel
– Series

4. Key Objectives:Key Objectives:
Recognize how resistance
effects current in each type of
circuit

5. Key TermsKey Terms
Current
Resistance
Resistor
Series Circuit
Parallel Circuit
Amperes

6. CurrentCurrent
The rate of flow of
electrons through
a conductor.
– Current is
measured in
Amperes

7. ResistanceResistance
Anything that inhibits or slows
the flow of electrons through a
conductor.

8. ResistorResistor
A device that
inhibits or slows
the flow of
electrons through
it.

9. Series CircuitSeries Circuit
Provides only
one path for
electrons to
flow through a
conductor.

10. Series CircuitSeries Circuit
A break
anywhere in a
series circuit
will end the
flow of
electrons or
“Lights Out!”

11. Parallel CircuitParallel Circuit
Provides more
than one
pathway for
electrons to flow
in a circuit.

12. Parallel CircuitParallel Circuit
A break between
resistors in this
circuit will not
end the flow of
electrons.

13. AmperesAmperes
The rate of flow
of electrons
moving past a
given point per
second (A) or
AMPs

14. Essential LearningsEssential Learnings
When voltage is increased
(increase the number of dry
cells) in series and parallel
circuits, current increases.
– This is called a Direct
Relationship

15. Essential LearningsEssential Learnings
When resistance is added in a
series circuit, the current flow is
reduced or decreases and
continues to do so as you add
resistance
– This is called an Inverse/Indirect
Relationship

16. Essential Learnings
In this situation as lights are
added to the series, all the
lights dim and subsequent
lights may not light at all.

17. Essential Learnings
When resistance is added in a
parallel circuit, the current flow
increases because there are
more pathways for the current to
flow
– This is called a Direct Relationship

18. Essential LearningsEssential Learnings
In this situation, all of the lights
should be equal in intensity

19. Well done….
– Get ready for
lab!!!

20. Essential Learnings
Enough
already!!!

21. Essential Learnings
Thank you
again!!!

22. Before you Begin:
Which one?

23. For the remainder of class
If possible pair up with a table-
mate and open the HOLT
textbook to page 482
Buddy-Read pages 482 - 497

24. Is it this one??

25. Or this one?

26. Well……

27. Its…..

28. This one!

30. Parallel Circuit
 Notice how the actual
drawing differs from the
diagram.
 Notice the straight lines
and right angles at
intersections
 You will use the zig-zag
symbol for your diagrams
and a broken line for each
switch.

31. Exit Ticket
Compare and contrast a parallel
circuit to a series circuit.