Solar Energy Part 2
Questions and Answers
- 1.
A solar cooker was invented by three American scientists in 1953.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
cooker -> cellRate this question:
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- 2.
A solar cell could change sunlight into eletricity.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A solar cell is a device that converts sunlight directly into electricity through the photovoltaic effect. This process involves the absorption of photons from sunlight by a semiconductor material, which then generates an electric current. Therefore, it is correct to say that a solar cell can change sunlight into electricity.Rate this question:
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- 3.
Solar cells are even smaller and brighter than before.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement suggests that solar cells have become smaller and brighter than before. However, the correct answer is False, indicating that the statement is not true. The explanation for this could be that while solar cells have indeed become more efficient and advanced over time, it does not necessarily mean that they have become smaller and brighter. The size and brightness of solar cells can vary depending on the specific technology and design used.Rate this question:
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- 4.
A cell phone can be plugged into the battery of a solar backpack.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A solar backpack is designed with built-in solar panels that can convert sunlight into electrical energy. This electrical energy is stored in a battery within the backpack. Therefore, it is possible to plug a cell phone into the battery of a solar backpack and charge it using the stored solar energy.Rate this question:
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- 5.
What was the solar cell a great invention?
- A.
It was invented by three scientists.
- B.
It was big and heavy.
- C.
It was tiny and flat.
- D.
It could create electricity.
Correct Answer
D. It could create electricity.Explanation
The solar cell was a great invention because it could create electricity. This innovation allowed for the conversion of sunlight into usable electrical energy, providing a clean and renewable source of power. The ability of the solar cell to generate electricity was a significant breakthrough in the field of energy production, offering a sustainable alternative to traditional fossil fuels and reducing reliance on non-renewable resources.Rate this question:
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- 6.
Why is the future of solar energy bright? Check ALL answers.
- A.
More and More solar cells are sold.
- B.
The price of solar cells decreases every year.
- C.
Solar energy does not harm the environment.
- D.
Solar energy will never be used up.
Correct Answer(s)
B. The price of solar cells decreases every year.
C. Solar energy does not harm the environment.
D. Solar energy will never be used up.Explanation
The future of solar energy is bright because the price of solar cells decreases every year, making them more affordable and accessible. Additionally, solar energy does not harm the environment, as it is a clean and renewable energy source. Furthermore, solar energy will never be used up, ensuring its long-term sustainability and availability.Rate this question:
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- 7.
Choose All the options that mean to put things away and keep them until you need them.
- A.
Squirrels are storing up nuts for the winter.
- B.
He will go to a big department store.
- C.
I need to go to the store for some milk.
- D.
He hoped the electronic equipment was safely stored away.
Correct Answer(s)
A. Squirrels are storing up nuts for the winter.
D. He hoped the electronic equipment was safely stored away.Explanation
The correct answer options, "Squirrels are storing up nuts for the winter" and "He hoped the electronic equipment was safely stored away," both imply the act of putting things away and keeping them until they are needed. In the first option, squirrels are collecting and storing nuts to have a food supply during the winter months. In the second option, someone is hoping that the electronic equipment has been stored in a safe place for future use. Both actions involve the concept of putting things away and keeping them until they are needed.Rate this question:
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- 8.
What is the word for the blank? The solar cells change ________ into electricity.
Correct Answer(s)
sunlightExplanation
The word for the blank is "sunlight" because solar cells have the ability to convert sunlight into electricity.Rate this question:
- 9.
In the text, many scientists think _____ energy will be the main future energy.
Correct Answer(s)
solarExplanation
Many scientists believe that solar energy will be the main future energy source. This is because solar energy is renewable, abundant, and does not produce harmful emissions. Additionally, advancements in solar technology have made it more efficient and cost-effective. Solar energy can be harnessed through the use of solar panels, which convert sunlight into electricity. As the world continues to prioritize sustainability and reduce reliance on fossil fuels, solar energy is seen as a promising solution to meet future energy needs.Rate this question:
- 10.
In the text, ______ means a thing that you get something from.
Correct Answer(s)
sourceExplanation
In the context of the text, the word "source" refers to a thing or place from which something is obtained or originates. It could be a person, document, website, or any other entity that provides information or supplies something. The term "source" indicates the origin or starting point of something, and it is commonly used in various fields such as research, journalism, and academia to refer to the origins or references of information or data.Rate this question:
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