Class 10 Physics Worksheet Sources of Energy

Energy is a fundamental part of our daily lives, powering everything from homes and vehicles to industries and gadgets. In Class 10 Physics, the chapter “Sources of Energy” explores how energy is produced, the types of energy sources available, and their impact on the environment. This topic is essential not only for academic success but also for understanding the importance of sustainable energy solutions in today’s world.

The term “sources of energy” refers to the origin or medium through which usable energy is derived. These sources are broadly categorized into renewable energy sources (such as solar energy, wind energy, hydroelectric power, and biomass) and non-renewable energy sources (like coal, petroleum, and natural gas). Renewable sources are sustainable and environmentally friendly, while non-renewable sources, though widely used, are finite and contribute to pollution and climate change.

Understanding the distinction between renewable and non-renewable energy, their advantages and disadvantages, and the methods of harnessing them is crucial for developing a deeper perspective on energy use and conservation. For instance, learning about solar panels, wind turbines, and geothermal plants can inspire innovative ideas for energy-efficient solutions.

This Class 10 Physics Worksheet on Sources of Energy is designed to help students grasp these concepts effectively. It includes multiple-choice questions, fill-in-the-blanks, short and long-answer questions, and activities to make learning engaging and thorough. By practicing this worksheet, students can strengthen their understanding of key terms like fossil fuels, energy conservation, and renewable technologies, while preparing themselves for exams.

Do Check: NCERT Solutions for Class 10 Science Chapter 14 Sources of Energy

What Are Sources of Energy?

A source of energy is anything that provides energy in a usable form. Energy is essential for running machines, cooking food, lighting homes, and transportation.

Broadly, sources of energy are classified into:

1. Renewable Sources of Energy: These are sustainable and can be replenished naturally, such as solar energy, wind energy, and hydro energy.
2. Non-Renewable Sources of Energy: These are finite resources and cannot be replenished once used, such as coal, petroleum, and natural gas.

Key Concepts in Sources of Energy

1. Fossil Fuels: These are formed from the remains of plants and animals buried under the Earth for millions of years. Examples include coal, petroleum, and natural gas. They are the primary non-renewable energy sources but cause environmental pollution.
2. Solar Energy: Solar energy is derived from the Sun. It is renewable, pollution-free, and can be converted into electricity using solar panels.
3. Wind Energy: Generated by the movement of wind using wind turbines, this energy source is renewable and eco-friendly.
4. Hydropower: Energy obtained from flowing water is called hydropower. It is clean and renewable but can disturb aquatic ecosystems.
5. Biomass Energy: Energy derived from organic materials like wood, agricultural waste, and animal dung. Biomass is renewable and widely used in rural areas.
6. Geothermal Energy: Heat energy from the Earth’s interior. It is renewable and useful for heating and electricity generation.
7. Nuclear Energy: Energy released during nuclear reactions (fission or fusion). It is efficient but involves risks like radioactive waste disposal.

Why Focus on Renewable Energy?

Renewable energy sources are critical for sustainable development. They:

• Reduce environmental pollution.
• Conserve non-renewable resources.
• Minimize greenhouse gas emissions.
• Promote energy security.

Do Check: Sources of Energy Class 10 Notes Science Chapter 14

Worksheet for Class 10 Sources of Energy

Here’s a detailed worksheet for Class 10 students. It includes multiple-choice questions, short-answer questions, long-answer questions, and activities.

Section A: Multiple-Choice Questions (MCQs)

1. Which of the following is a renewable source of energy? a) Coal
   b) Petroleum
   c) Solar Energy
   d) Natural Gas
   (Answer: c)
2. The primary gas responsible for global warming is:
   a) Nitrogen
   b) Oxygen
   c) Carbon Dioxide
   d) Hydrogen
   (Answer: c)
3. Which of these energy sources causes the least pollution?
   a) Biomass
   b) Solar
   c) Coal
   d) Natural Gas
   (Answer: b)
4. What is the main disadvantage of using nuclear energy?
   a) Low energy output
   b) High cost
   c) Radioactive waste
   d) Requires sunlight
   (Answer: c)
5. Which energy source is best suited for remote areas?
   a) Petroleum
   b) Solar energy
   c) Nuclear energy
   d) Coal
   (Answer: b)

Section B: Short Answer Questions

1. Define renewable and non-renewable sources of energy with examples.
2. Explain how wind energy is converted into electricity.
3. What are the advantages of using solar energy?
4. Why is it important to conserve fossil fuels?
5. What are the main components of a hydroelectric power plant?

Section C: Long Answer Questions

1. Compare and contrast the advantages and disadvantages of renewable and non-renewable energy sources.
2. Describe the process of generating electricity using a thermal power plant.
3. Discuss the environmental impacts of using fossil fuels and suggest ways to minimize them.
4. Explain how geothermal energy is harnessed. What are its advantages and limitations?
5. Why is nuclear energy considered both an opportunity and a threat?

Section D: Activities

1. Research Activity:
   Research any renewable energy source and prepare a 2-minute speech on how it is harnessed and its benefits.
2. Creative Writing:
   Write a short essay titled “A Day Without Energy.” Imagine how life would be if there were no electricity or fuel.
3. Practical Experiment:
   Create a simple solar cooker using household materials. Test it to see how effectively it can heat water or cook food.
4. Group Discussion:
   Discuss in groups: “Which energy source will dominate in the future and why?”

Do Check: Extra Questions – Sources of Energy – CBSE Class 10 Science

Additional Worksheet on Source of Energy Class 10 Physics

True or False

1. Fossil fuels are renewable sources of energy. (False)
2. Solar panels convert light energy into electrical energy. (True)
3. Hydropower plants do not affect aquatic life. (False)
4. Biomass energy is derived from organic matter. (True)
5. Wind energy is a form of non-renewable energy. (False)

Fill in the Blanks

1. The Sun is the primary source of _______ energy. (solar)
2. _______ is the most widely used fossil fuel in the world. (Coal)
3. Wind turbines convert _______ energy into electricity. (kinetic)
4. _______ energy is stored in the Earth’s crust. (Geothermal)
5. _______ is a clean and efficient energy source but involves the risk of radioactive waste. (Nuclear)

Match the Following

(Answers: 1→a, 2→b, 3→c, 4→d, 5→e)