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.