Household energy quiz

Here's a quick quiz on common household energy problems:

1. Which is a better thermal insulator? (A) 12 inches of fiberglass wool or (B) 12 inches of solid glass

2. Which heats your room more? (A) a 500-watt halogen torch lamp or (B) a 500 watt electric space heater

3. Will blocking the airflow behind a refrigerator affect electric bills?

4. Will using an underrated extension cord with a large appliance (A) save energy or (B) waste it?


1. A. 2. They give off the same heat. 3. Yes, they'd be higher. 4. B.

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Source: American Physical Society

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