The Ultimate Solar-Powered Refrigerator Quiz
by Staff
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.

How many people worldwide do not have access to electricity?

  • one billion
  • two billion
  • three billion

What is another term for solar energy?

  • photovoltaics
  • photowatt
  • photolight

What happens when sunlight hits a photovoltaic cell on a solar panel?

  • It heats up.
  • It cools down.
  • It breaks loose and moves around.

Who developed the first solar-powered refrigerator?

  • Electrolux
  • LG
  • NASA

How does a basic solar-powered refrigerator keep things cool?

  • It uses a vapor-compression system.
  • It use a solar-induced vacuum system.
  • It uses an ionization system.

What cooling temperature can a basic solar-powered refrigerator reach?

  • 38 degrees Fahrenheit
  • 45 degrees Fahrenheit
  • 50 degrees Fahrenheit

How much sunlight per day does a solar-powered refrigerator require?

  • two hours of sunlight
  • five hours of sunlight
  • seven hours of sunlight

What happens if a basic solar-powered refrigerator does not get enough sunlight?

  • It can use stored up sunlight power.
  • It can use supplementary battery power.
  • both of the above

The “eco-fridge”, introduced in 2009, uses only__________for energy.

  • solar-panels
  • an evaporative-cooling system
  • water

Who can benefit most from a refrigerator that does not require electricity or solar panels?

  • campers
  • Third World countries
  • environmentalists

What cooling temperature can the eco-fridge reach?

  • 38 degrees Fahrenheit
  • 43 degrees Fahrenheit
  • 48 degrees Fahrenheit

What kind of climate is ideal for the eco-fridge?

  • cold and sunny
  • hot and wet
  • hot and sunny

What backup system is incorporated into the eco-fridge?

  • none
  • battery backup
  • electrical backup

When did people first begin using solar-powered refrigerators?

  • in the last 20 years
  • in the last 10 years
  • in the last 5 years

Solar energy is used for:

  • charging cell phones
  • powering the International Space Station
  • both of the above

If you set your refrigerator between 38 and 42 degrees Fahrenheit, what is the percentage of improved efficiency?

  • 0.1
  • 0.15
  • 0.25

What simple device can you buy to decrease refrigerator energy consumption?

  • a refrigerator lock
  • a refrigerator alarm
  • a refrigerator fan

Who can benefit from solar-powered refrigeration?

  • street vendors
  • scientific study outposts
  • both of the above

What does the eco-fridge require for producing energy?

  • sun's heat
  • water
  • both the above

What are the energy-producing components of the eco-fridge?

  • two cylinders
  • one cylinder
  • coils