Go With the Flow
TSWBAT:
Demonstrate an understanding of Static Electricity, Current and Circuits
Key Objectives:Key Objectives:
Identify the two types of electrical circuits– Parallel– Series
Key Objectives:Key Objectives:
Recognize how resistance effects current in each type of circuit
Key TermsKey Terms
CurrentResistanceResistorSeries CircuitParallel CircuitAmperes
CurrentCurrent
The rate of flow of electrons through a conductor. – Current is
measured in Amperes
ResistanceResistance
Anything that inhibits or slows the flow of electrons through a conductor.
ResistorResistor
A device that inhibits or slows the flow of electrons through it.
Series CircuitSeries Circuit
Provides only one path for electrons to flow through a conductor.
Series CircuitSeries Circuit
A break anywhere in a series circuit will end the flow of electrons or “Lights Out!”
Parallel CircuitParallel Circuit
Provides more than one pathway for electrons to flow in a circuit.
Parallel CircuitParallel Circuit
A break between resistors in this circuit will not end the flow of electrons.
AmperesAmperes
The rate of flow of electrons moving past a given point per second (A) or AMPs
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
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
Essential Learnings
In this situation as lights are added to the series, all the lights dim and subsequent lights may not light at all.
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
Essential LearningsEssential Learnings
In this situation, all of the lights should be equal in intensity
Well done….– Get ready for
lab!!!
Essential Learnings
Enough already!!!
Essential Learnings
Thank you again!!!
Before you Begin:Which one?
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
Is it this one??
Or this one?
Well……
Its…..
This one!
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.
Exit Ticket
Compare and contrast a parallel circuit to a series circuit.