ELECTRICITY
CULMINATING
ASSIGNMENT:
The Mother of all
Bedrooms

Task:
Read instructions and create a drawing of your
ideal bedroom

Calculate the energy usage for your room

Answer Questions

Submit:
Drawing of your ideal bedroom

Table of energy costs

Answers to questions
GRADE 9 APPLIED ELECTRICITY CULMINATING
ASSIGNMENT
THE MOTHER OF ALL BEDROOMS!
Ok, so you’ve been given a blank cheque to make your room into your dream
room. Put any electronic device in that you want. Game consoles, a booming
stereo and kickin’ lighting. Most important will be the appliances (fridge,
microwave, etc.) that you put into your room. You will need all the necessities to
never have to leave your haven… except to visit the facilities. Start with a
drawing. Use the rectangle on the next page to design your room, putting in the
electrical appliances, lights and electronics. You can cut and paste picture from
the internet if you’d like or draw them yourself. Don’t forget to put in your
outlets as well, so that you can plug your stuff in. Once you have put in all your
stuff, you’ll calculate the yearly amount of electricity you will use and the cost.
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Calculating the Cost of Energy for Your Room
Go to
http://www.energysavers.gov/your_home/appliances/index.cfm/mytopic=10040
to calculate how much energy your electrical appliances will use. Use the table to below to fill in the information you
need. The website guides you on how to calculate the energy used by your appliances and electronic devices. If you
cannot find the power used by certain appliances or electronic devices, use Google to find that information. The cost of
electricity in Toronto is $0.068 per kWh. An example is done for you to help you.
Name of
Appliance
Window
Fan
Energy
Use per
Hour
200 W
Number
of Hours
Used Per
Day
4 hrs
Days
Used
per
Year
Energy Used Per Year
120 days
(200 Watts × 4 hours/day ×
120 days/year) ÷ 1000 =
96 kWh
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Cost Per Year
96 kWh × $0.068/kWh = $6.53 per
year
TOTAL COST
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Questions
1. Which of your appliances used the least amount of energy?
2. Which one used the most electricity?
3. Which type of appliances or electronic devices used the most electricity?
(for example: audio devices)
4. Do you think that you use a lot of energy or a little bit of energy? Why or
whynot?
5. Go to http://www.green-energy-efficient-homes.com/average-electricityconsumption.html and look up what the average Canadian home uses for
electricity per year. What fraction of that amount do you use?
6. What is one thing you can do to make sure you are lowering the amount
of energy you use in your MOTHER OF ALL BEDROOMS?
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7. How many outlets will your room need?
8. Is your room wired in series or parallel? Why is it wired in this way?
9. Most electronics are sensitive to static shocks. What is one thing you can
do to minimize static electricity build-up on you, so that you don’t fry your
expensive electronics?
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