Solar-energy is not a new concept, but it's now being applied in new and innovative ways in an effort to reduce energy consumption and help save the environment. Refrigerators, for example, use up a lot of energy. Take this quiz to check your knowledge of how solar-power can fight global warming with your refrigerator.
Question 1 of 20
How many people worldwide do not have access to electricity?
Question 2 of 20
What is another term for solar energy?
Question 3 of 20
What happens when sunlight hits a photovoltaic cell on a solar panel?
Question 4 of 20
Who developed the first solar-powered refrigerator?
Question 5 of 20
How does a basic solar-powered refrigerator keep things cool?
Question 6 of 20
What cooling temperature can a basic solar-powered refrigerator reach?
Question 7 of 20
How much sunlight per day does a solar-powered refrigerator require?
Question 8 of 20
What happens if a basic solar-powered refrigerator does not get enough sunlight?
Question 9 of 20
The “eco-fridge”, introduced in 2009, uses only__________for energy.
Question 10 of 20
Who can benefit most from a refrigerator that does not require electricity or solar panels?
Question 11 of 20
What cooling temperature can the eco-fridge reach?
Question 12 of 20
What kind of climate is ideal for the eco-fridge?
Question 13 of 20
What backup system is incorporated into the eco-fridge?
Question 14 of 20
When did people first begin using solar-powered refrigerators?
Question 15 of 20
Solar energy is used for:
Question 16 of 20
If you set your refrigerator between 38 and 42 degrees Fahrenheit, what is the percentage of improved efficiency?
Question 17 of 20
What simple device can you buy to decrease refrigerator energy consumption?
Question 18 of 20
Who can benefit from solar-powered refrigeration?
Question 19 of 20
What does the eco-fridge require for producing energy?
Question 20 of 20