Study Materials: CBSE Notes

Our CBSE Notes for Notes 14. Sources of Energy - Introduction | Class 10 Science - Toppers Study is the best material for English Medium students cbse board and other state boards students.

Notes ⇒ Class 10th ⇒ Science ⇒ 14. Sources of Energy

# Notes 14. Sources of Energy - Introduction | Class 10 Science - Toppers Study

Topper Study classes prepares CBSE Notes on practical base problems and comes out with the best result that helps the students and teachers as well as tutors and so many ecademic coaching classes that they need in practical life. Our CBSE Notes for Notes 14. Sources of Energy - Introduction | Class 10 Science - Toppers Study is the best material for English Medium students cbse board and other state boards students.

## Notes 14. Sources of Energy - Introduction | Class 10 Science - Toppers Study

CBSE board students who preparing for class 10 ncert solutions maths and Science solved exercise chapter 14. Sources of Energy available and this helps in upcoming exams 2023-2024.

### You can Find Science solution Class 10 Chapter 14. Sources of Energy

• All Chapter review quick revision notes for chapter 14. Sources of Energy Class 10
• NCERT Solutions And Textual questions Answers Class 10 Science
• Extra NCERT Book questions Answers Class 10 Science
• Importatnt key points with additional Assignment and questions bank solved.

Chapter 14 Science class 10

### Introduction class 10 Science Chapter 14. Sources of Energy

• Notes 14. Sources Of Energy - Introduction | Class 10 Science - Toppers Study
• Class 10 Ncert Solutions
• Solution Chapter 14. Sources Of Energy Class 10
• Solutions Class 10
• Chapter 14. Sources Of Energy Introduction Class 10

## Notes 14. Sources of Energy - Introduction | Class 10 Science - Toppers Study

14. Sources of Energy

The law of conservation of energy:

Energy can niether be created nor be distroyed, It can only be transformed into one form to another form.

Main-points:

• The total energy during a physical or chemical process is conserved.
• Energy comes in different forms and one form can be converted to another. For example, if we drop a plate from a height, the potential energy of the plate is converted mostly to sound energy when it hits the ground.
• If we light a candle, the process is highly exothermic so that the chemical energy in the wax is converted to heat energy and light energy on burning.
• Eenergy, in the usable form, is dissipated to the surroundings in less usable forms. Hence, any source of energy we use, to do work, is consumed and cannot be used again.

Good Fuels: Fuels which would do a large amount of work per unit volume or mass, be easily accessible and be easy to store and transport are called good fuels.

Properties of good fuels:

(i) Which produce less pollutants.

(ii) which would do a large amount of work per unit volume or mass.

(iii) Which are easily accessible.

(iv) Which are easy to store and transport.

(v) Which are economicals.