Chapter 11 Work and Energy is a physics chapter which teaches us about the physics terms work and energy. Class 9 students can find the Science textbook NCERT Solutions, which have been attempted, as per our subject experts' latest CBSE English curriculum. Besides, students can also explore the other NCERT Solutions of Class 9 on our website and have a fulfilling learning experience. By following Aakash's solutions, you can get better marks and top in the whole class. Do self-study with our study material created by our subject experts.
The Joule, which has the symbol J, is the standard unit used to calculate energy and work performed in physics. In dynamics, when a force of 1 Newton is applied to an object and drives a distance of 1 metre, 1 Joule is the energy transmitted. Energy is a term which in daily life seems to be used a lot. Although it is sometimes used very loosely, it does have a clear physical sense. Energy is a calculation of the potential of anything to do work.
It is not a substance of material origin. The energy, in many ways, can be processed and weighed. Although we sometimes hear people complaining about the consumption of electricity, energy is never destroyed. It is only moved, doing work in the process, from one form to another. Some sources of energy, such as low-level thermal energy, are less beneficial to us than others. The consumption or production of energy resources, such as gas, oil, or wind, is easier to speak about than the consumption of energy itself.
|Chapter 1 Matter in Our Surrounding||Chapter 2 Is Matter Around Us Pure||Chapter 3 Atoms and Molecules|
|Chapter 4 Structure of the Atom||Chapter 5 The Fundamental of Unit of Life||Chapter 6 Tissues|
|Chapter 7 Diversity in Living Organism||Chapter 8 Motion||Chapter 9 Force and Law of Motion|
|Chapter 10 Gravitation||Chapter 12 Sound||Chapter 13 Why Do We Fall Ill|
|Chapter 14 Natural Resources||Chapter 15 Improvement in Food Resources||Chapter 16 Light|
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