Source of Energy Quiz - CBSE Class 10 Science

Free practice quiz: Source of Energy (CBSE Class 10 Science). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 10 Science practice quiz has 20 multiple-choice questions on Source of Energy, and 20 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. Which of the following is considered a renewable source of energy?

   1. Coal
   2. Natural Gas
   3. Solar Energy
   4. Nuclear Energy
   Show answer

   Answer: C. Solar Energy

   Solar energy is renewable as it comes from sunlight which is abundant and everlasting.

2. Which type of energy conversion occurs in a solar cell?

   1. Thermal to chemical
   2. Mechanical to electrical
   3. Light to electrical
   4. Chemical to mechanical
   Show answer

   Answer: C. Light to electrical

   Solar cells convert the light energy from the sun directly into electrical energy.

3. How is geothermal energy harnessed?

   1. By burning gas
   2. Through wind turbines
   3. Using geothermal pumps
   4. By solar panels
   Show answer

   Answer: C. Using geothermal pumps

   Geothermal energy is harnessed by using heat pumps that convert heat from below the Earth's surface into usable energy.

4. Which energy source has the highest potential energy density?

   1. Solar
   2. Wind
   3. Nuclear
   4. Biomass
   Show answer

   Answer: C. Nuclear

   Nuclear energy has the highest energy density, meaning it produces more energy per unit mass than others.

5. What is the equation used to calculate the efficiency of an energy device?

   1. Efficiency = (Input Energy / Output Energy) x 100
   2. Efficiency = (Output Energy / Input Energy) x 100
   3. Efficiency = Input Energy - Output Energy
   4. Efficiency = Output Energy + Input Energy
   Show answer

   Answer: B. Efficiency = (Output Energy / Input Energy) x 100

   Efficiency is calculated by dividing the useful energy output by the total energy input and multiplying by 100.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Why is solar energy considered cleaner compared to fossil fuels?
2. Which of the following is the major drawback of wind energy?
3. What is the primary advantage of hydroelectric power?
4. Which of the following is an inexhaustible source of energy?
5. Which biomass fuel can be used for cooking and heating in rural areas?
6. What is the significant limitation of solar energy?
7. Which method is most appropriate for utilizing tidal energy?
8. What is 'biofuel' primarily made from?
9. Why is nuclear energy considered a nonrenewable resource?
10. Which energy conversion takes place in a wind turbine?
11. What is the primary environmental concern related to hydroelectric power?
12. What role does efficiency play in determining the best energy sources?
13. Why is distributed generation of energy considered beneficial for the grid?
14. Which factor greatly influences the global preference for renewable sources of energy?
15. How does cogeneration increase the efficiency of energy systems?

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