A: Because of all the cheetahs 1 BELL RINGER: Create the following schematic diagram based on the previous lesson on circuits, resistance, and diagrams

A: Because of all the cheetahs 1

BELL RINGER: Create the following schematic diagram based on the previous lesson on circuits, resistance, and diagrams

60W 100W

Ohm’s Law

Agenda1. Bell RingerWhat is Electrostatics PART 2: -Notes on circuits and parts of circuitBM A.1-Explain knowledge by

using specific terms -Cartoon readingBM A.1-Explain knowledge by using specific terms

-Readings on electrical current, current flow, and schematics drawings BM A.1-Explain knowledge by using specific terms

2. Review of the Lesson

What is Electricity-

LESSON: Ohm’s Law Page 8

Fact of the Day:Americans make up 5% of the world's population, and yet, produce 30% of the world's waste and use 25% of the world's resources.Joke of The Day:

Why don’t elephants like playing cards in the jungle?

VΩ

Voltage

Current Resistance

Lesson: Ohm’s Law- Page 41

At the end of the lesson I should be able to:

understand Ohm’s Law and the variables associated with it.Statement of Inquiry:

Scientists study systems, their interactions with other systems, and their transformations to create scientific innovation which reduce risk.

Factual Inquiry Question:

What is an electron?

Conceptual Inquiry Question:

How is a electricity a form of energy?

CHAMPS

Conversation: Talking 1-4

2

Help:How do I get help?

XAsk

Teacher

X

Discuss With

Neighbor

Activity:What is the end result?

Completion of Activities on pgs. 20-

39

Movement:Can I get up?

YES

X NO

Participation:What does this look like?

-Completed Notes-Being Involved In Class Discussions with other students and

teacher

Debatable Question:

What is the best way to create electricity in the 21st Century?









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XAsk

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Neighbor



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YES

X NO



teacher

Debatable Question:


12V

4Ω3A

24V3Ω

8A Complete the rest of the problems

1.5V3Ω0.5A

Complete the rest of the problems








CHAMPS


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Teacher

X

Discuss With

Neighbor



39


YES

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teacher

Debatable Question:



Complete the problems








CHAMPS


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YES

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teacher

Debatable Question:



Watch Movie on Webpage and answer the questions on page

45








CHAMPS


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YES

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teacher

Debatable Question:



OHM’S LAW READING

• Ohm’s Law states that the current in a circuit is directly proportional to the voltage impressed across the circuit, and is inversely proportional to the resistance of the circuit.

• The relationship among voltage, current, and resistance is called Ohm’s Law .

Ohm’s Law in short, current=voltage/resistance.

• The relationship among the units of measurement for current, voltage and resistance is: 1 ampere=1 volt/ohm

OHM’S LAW QUESTIONS

DIRECTIONS: Fill in the blank from the reading

1. The relationship among current, voltage, and _________________ is called Ohm’s Law.

2. State Ohm’s Law

_______________________________________________

_______________________________________________

3. How can you express Ohm’s Law mathematically:

4. What is the relationship among the units of

measurement for the three quantities released by Ohm’s Law?

_______________________________________________

5. What are resistors?

_______________________________________________

_______________________________________________








CHAMPS


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XAsk

Teacher

X

Discuss With

Neighbor



39


YES

X NO



teacher

Debatable Question:



OHM’S LAW AND ELECTRICAL SHOCK READING

• The damaging effects of electric shock are the result of current passing through the body.

• From ohm’s law, we can see that a damaging electric current depends on the voltage applied, and also on the electrical resistance of the human body.

• The resistance of the human body depends on its condition and ranges from about 100 ohms if it’s soaked with salt water to about 500,000 ohms if the skin is very dry

• Drops of water that collect around on/off switches of devices such as a hair dryer can conduct current to the user. Handling electric devices while taking a bath is extremely dangerous.



1. The damaging effects of electric shock are the result of _________________ passing through the body.

2. Is the following sentence true or false? The resistance of your body is much greater when your soaked with water than when your skin is dry. _________________

3. Explain why it is dangerous to handle electric devices while taking a bath. __________________________________________________________








CHAMPS


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XAsk

Teacher

X

Discuss With

Neighbor



39


YES

X NO



teacher

Debatable Question:



OHM’S LAW AND ELECTRICAL SHOCK READING

• If a bird is perched on a high line wire, the bird will not receive a shock unless there is a difference in potential between one part of its body and another part.

• Mild shocks occur when the surfaces if appliances are at an electrical potential different form that of the surfaces of another nearby.



4. Is the following sentence true or false?

A bird perched on a high-voltage wire is not shocked because there is not a potential difference between one part of the body and the other part.

TRUE FALSE

5. What is the purpose of third prong on a three-prong electric plug?

A: To use as a grounding wire so that shocks or electrical fires

do not occur.








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Discuss With

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39


YES

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teacher

Debatable Question:



REVIEW OF LESSON: OHM’S LAW1. Rewrite Ohm’s Law below:

2. Solve the following using Ohm’s Law V=12VR= 24ΩI= _____

3. Solve the following using Ohm’s Law V=6VR= 24ΩI= _____

.








CHAMPS


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XAsk

Teacher

X

Discuss With

Neighbor



39


YES

X NO



teacher

Debatable Question:



Exit Slip: page 9

11

Complete the following Ohm’s Law Problem Mathematically?

Ohm’s Law

Agenda 1. Bell Ringer 2. Series Circuit -How can we describe a series circuit. -Understanding resistors in a series circuitBM A.1-Explain knowledge by

using specific terms

BM A.2-Explain knowledge in unfamialar situations.

3. Ohm’s Law in a Series CircuitBM A.1-Explain knowledge by

using specific terms

BM B.3-Explain manipulation of variables

4. Series Circuits Schematic Drawings BM A.1-Explain knowledge by using specific termsBM B.3-Explain manipulation of

variables

5. Exit Slip

5 10

Documents

A: Because of all the cheetahs 1 BELL RINGER: Create the following schematic diagram based on the previous lesson on circuits, resistance, and diagrams