1. Current Electricity

3. Why did the electron cross the road? Or, why do electrons move in the wire when terminals are connected?

7. Electric Circuits Conductor forms closed loop from/to battery Charges lose PE

8. Potential Difference (voltage) Change in PE as charge moves in circuit Variable - V Unit – volt

9. Current Rate charges move Variable - I Unit – Amp (A)

10. Resistance Caused by internal friction Variable – R Unit - 

11. Example 60 W bulb 100 W bulb Which has more resistance?

12. Which wire has greater resistance? Longer vs. shorter Thicker vs. thinner

13. Vocabulary Review Potential difference Current Resistance

15. Circuit Diagram Standard way to draw circuits

16. Battery

17. Resistor

18. Bulb

19. Switch

20. In your notes… Draw a series circuit with a resistor, a light bulb, and a switch

21. In your notes… Draw a parallel circuit with two branches (one bulb in each) and a switch

22. Series Circuits One path for current flow

23. Parallel Circuits Multiple paths for current flow

24. Ohm’s Law V = I R

25. 1/14/15 Review Ohm’s law problems Power quick notes and problems Magnet lab

26. Ohm’s Law Problems Handout and equation triangle Calculator Pencil

27. Get now… Textbook Composition book

28. Electric Power Rate at which electrical work is done P = IV Unit – watt

29. Electric Power Problems Textbook page 189 16 - 18

30. Magnet Lab