1. Electricity and Magnetism
Welcome to Physics
Electricity and Magnetism

2. Warm Up: page 18 Draw a circuit made up of: A light bulb Two wires
A battery
What two things must be true in order to make a functioning circuit?
8 minutes

3. Agenda: summarize in planner
Finish “Investigating Electricity”
Cornell Notes:
Measuring Electricity
Exit Ticket
This Thursday you need to come in to finish the test if you have not already!

4. Learning Targets
I can build a battery using household materials, and explain how my battery works
I can describe how electrically charged objects interact
I can identify the difference between conductors and insulators
I can identify the two necessary requirements of an electric circuit

5. Writing and Reading Discussion Group Work Instruction Quiet Focused
Active listening
On Topic
Ask Questions
Group Work
Focus on topic
Fulfill Roles
Lean in
Instruction
Listen
Take notes
Raise hands

6. Investigating Electricity: part 2
Checkpoint 4
Finish the activity
Complete each activity, and answer the questions
Make sure you have the “model building questions” answered
WHEN DONE : repack kit and return to the front table
25 minutes

7. Investigating Electricity: discussion
Checkpoint 4
Something was happening in the wires of the “basic closed loop.” What was the evidence?
Something was moving in the wires. What do you think it was?
Was that something always moving in the same direction? What evidence supports your answer?

8. Cornell Notes: page 21 Topic: Measuring Electricity
Essential Questions:
What can you measure in a circuit?
What do those measurements tell you?

9. Measuring Electricity
Electricity: movement of charge through a circuit
Form of kinetic energy
Charge carrier: electron
Moving charge does work: powers motors, light bulbs, cell phones, etc.
Three ways to measure charge in circuits:
Voltage: difference in charge between two points
Current: the strength/speed of the moving charge
Resistance: how hard it is for charge to move
Electric Circuits require a closed loop of conducting materials, and a source of power. If those two things are present, charge can move through a circuit.
This raises further questions: where does the charge come from? Why does it move? What affects how it moves? What can we measure about the movement of charge?

10. Batteries (all sources of voltage): do work to separate positive and negative charges, and create the “difference in charge” that voltage is a measure of. Analogous to lifting a rock into the air---the Earth’s gravity

11. Voltage is like:
Current is like:
Resistance is like:
The water pressure in the tank
How fast the water is coming out of the pipe
How hard it is for the water to get through the pipes

12. High Voltage
Low Voltage

13. High Current
Low Current

14. High Resistance
Low Resistance

15. Measuring Electricity Continued
Voltage: how much work can be done
Unit: volts
1 volt = 1 joule per coulomb
Current: how fast the work will get done
Unit: amperes (amps)
1 amp = 1 coulomb per second
Resistance: how much energy is lost or removed
Unit: ohms

16. Repetitions Chunk your notes Highlight each new science word.
Turn supporting targets d and e into questions.
At least 4 questions!
Write the questions in the question column next to to where the answers are found in the notes
WHEN DONE:
Go to crockphysics.weebly.com
On the “Electricity and Magnetism” page, watch the “What is Voltage?” video.

17. Exit Ticket
A charged plastic rod pulls a can across a table. What does that tell you about the electrical charge of the two objects?
What is the difference between a conductor and an insulator?
What measurement describes the difference in charge between two points in a circuit? What

18. Clean Up
Chromebooks returned and plugged in to the correct slot Name tags turned in Check for Understanding in box Notebooks in backpack Stay in your seat until the bell rings