Exploration Activity 1 Energy & Power

Part 1: Study your recent electricity bill. You may use the paper bill or the electronic version available at the website of your utility company. Do not include identifiable information such as the account number or account holders name, address etc in your answers.

1. How much is the total kilowatt hours used in the most recent bill? Attach photo (if its a paper bill) or a screenshot (electronic version) of the bill showing ONLY the portion where it shows the total kilowatt hours used. Crop the photo/screenshot to eliminate any identifiable information. Do not simply attach a photo. You MUST write/type the answer. (2 points)
2. What is the cost per kilowatt hour ? Ignore fees and other charges, and give the lowest energy charge for 1 kilo watt hour. (3 points)
3. Now think about all the appliances used at your home. According to your knowledge, what are the two appliances that use the most electricity in your household? Explain your reasons. No explanation, no points. (5 points)

Part B: Study the label on a small electric appliance at home, such as your TV, laptop, or microwave oven (or anything with a power rating). The label typically shows the power rating in watts or kilowatts. (volts (V) means voltage, not power).

1. What is your chosen appliance? (2 points)
2. What is the power rating indicated on the label? Take a photo and attach it to the assignment. (3 points)
3. According to the power rating, and the cost per kilowatt hour given in your electric bill, how much is the total operational cost if you use the appliance for one hour per day for 7 days? You must show how you arrive at your answer. (5 points total)