Forms of Energy Quiz - CBSE Class 7 Science
Free practice quiz: Forms of Energy (CBSE Class 7 Science). 18 multiple-choice questions with answers and explanations. Play online, no sign-up needed.
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What form of energy is stored in the food we eat?
- Kinetic Energy
- Chemical Energy
- Nuclear Energy
- Electrical Energy
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Answer: B. Chemical Energy
The energy stored in food is a type of potential energy known as chemical energy, which is released during digestion.
What is the primary form of energy used by plants during photosynthesis?
- Chemical Energy
- Solar Energy
- Mechanical Energy
- Heat Energy
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Answer: B. Solar Energy
Plants primarily use solar energy to convert carbon dioxide and water into glucose during photosynthesis.
What is the source of geothermal energy?
- Heat from the sun
- Heat from the Earth's core
- Wind energy
- Hydropower
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Answer: B. Heat from the Earth's core
Geothermal energy is harnessed from the heat generated and stored within the Earth, primarily from the Earth's core.
In which form of energy is water stored in a dam?
- Kinetic Energy
- Potential Energy
- Thermal Energy
- Electrical Energy
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Answer: B. Potential Energy
Water stored at height in a dam possesses gravitational potential energy due to its elevation above the ground.
How is sound energy produced?
- By vibrating objects
- By moving air
- By burning fuel
- By transferring heat
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Answer: A. By vibrating objects
Sound energy is produced when objects vibrate, creating waves that travel through a medium such as air.