Quiz: The Ultimate Solar-Powered Refrigerator Quiz
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The Ultimate Solar-Powered Refrigerator Quiz
By: Staff
Image: refer to hsw

About This Quiz

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.

1.0 of 20
How many people worldwide do not have access to electricity?

Two billion people -- nearly a third of the global population -- do not have electricity!

2.0 of 20
What is another term for solar energy?

Photovoltaics is another term for solar energy. Solar panels use photovoltaic cells to convert sunlight into energy.

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

When sunlight hits a photovoltaic cell on a solar panel the cell heats up, causing electrons to become loose and ultimately creating electricity.

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Who developed the first solar-powered refrigerator?

NASA developed solar-powered refrigerators for the International Space Station. NASA scientists then applied the same concept on Earth and created the SunDazer, the first solar-powered refrigerator for domestic use.

5.0 of 20

A basic solar-powered refrigerator uses the traditional method of vapor-compression for cooling.

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

A basic solar-powered refrigerator reaches the same cooling temperature as a traditional refrigerator: 38 degrees Fahrenheit.

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

To maintain a cooling temperature of 38 degrees Fahrenheit, a solar-powered refrigerator requires five hours of sunlight per day.

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

A basic solar-powered refrigerator has two backups if it does not get enough sunlight. It has supplementary battery power and it can also store sunlight power for up to a week.

9.0 of 20
The “eco-fridge”, introduced in 2009, uses only__________for energy.

A British student named Emily Cummins invented a refrigerator with no moving parts, called the “eco-fridge." It uses an evaporative-cooling system for energy.

10.0 of 20
Who can benefit most from a refrigerator that does not require electricity or solar panels?

Impoverished people of third-world countries can truly benefit from such a refrigerator for keeping essential medication refrigerated. Such a refrigerator requires no electricity and is not as expensive as solar-paneled refrigerators.

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What cooling temperature can the eco-fridge reach?

Cummins's eco-fridge can remain at 43 degrees Fahrenheit for several days.

12.0 of 20
What kind of climate is ideal for the eco-fridge?

The eco-fridge requires a lot of sunlight and heat. Hot climate countries, such as Namibia, can truly benefit from this system.

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What backup system is incorporated into the eco-fridge?

This refrigeration system has no backup. It relies solely on sunlight to keep items cold.

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When did people first begin using solar-powered refrigerators?

In the past decade, green-conscious individuals have replaced their regular refrigerators with solar-powered ones.

Solar energy provides electricity for many household needs, including charging cell phones. Solar energy is also used to power the International Space Station.

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

Your refrigerator will run 25% better if it is set between 38 and 42 degrees Fahrenheit.

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

You can buy a refrigerator alarm, which rings every time your refrigerator is left open for too long.

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Who can benefit from solar-powered refrigeration?

Many people can benefit from solar-powered refrigeration, including street vendors, scientific study outposts, people in third-world countries, remote camping sites and eco-resorts.

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What does the eco-fridge require for producing energy?

The eco-fridge, which operates on an evaporative cooling system, requires the sun's heat and some water to function.

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

The eco-fridge is comprised of two cylinders, one inside the other. The outer cylinder can actually be made up of almost anything, including cardboard!

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