1. Electrical Energy Consumption Feb 19 & 20

2. Please hand in your Ohm’s Law Lab Please self-assess, staple your self-assessment to the front of your lab, and hand in your Ohm’s Law Lab to the box

3. HW check (How powerful are you?) & Try This: Power Formulas

4. Try This: Power Formulas

7. Important dates Make up Unit Test: Current Electricity If you missed your Unit Test: Current Electricity, you must write your test in W203 during lunch time on: – Thursday, Feb 19 th OR – Friday, Feb 20 th

8. Important dates Feb 23 rd / Feb 24 th : Prove the Formula Lab (Criterion B) (instructions will be given next class) Feb 25 th / 26 th : Checkpoint – Power and energy consumption calculations (Criterion A) March 5 th / March 6 th : Production of Electricity Project DUE (Criterion D) (more info to follow)

9. Notes: Electrical Energy Consumption

10. Notes: How to calculate the cost of electricity consumption

13. Class practice: Electrical Energy Problems Answer key on whiteboard Skip #6

14. Let’s go over: Proving a Formula Lab The lab will be NEXT CLASS (please try your best to come to the class on time) You will be working with assigned group members to create a method to “prove” a mathematical formula Each group will receive: – 3 lights – Wires – 4 cells – multimeter – 1 machine (solar car, windmill, buzzer, other) – Felts and chart paper

15. Reminders Complete class practice: “Electrical Energy Problems” Prove a formula lab is NEXT CLASS (Feb 23 rd, 24 th ) – please come to class on time