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.

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 quizzes

• Control and Coordination
• Current Electricity
• Electricity
• Light
• Periodic Motion

Browse all Physics quizzes