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Physics Chapter 6 Long Questions
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Class 9 Physics Chapter 6 Long Questions Notes
- Define work. What is its SI unit?
- When does a force work? Explain.
- Why do we need energy?
- Define energy, and give two types of mechanical energy.
- Define K.E. and derive its relation.
- Define potential energy and derive its relation.
- Why fossil fuels are called nonrenewable forms of energy?
- Which form of energy is most preferred and why?
- How is energy converted from one form to another? Explain.
- Name the five devices that convert electrical energy into mechanical energy.
- Name a device that converts m e c h a n i c a l e n e r g y i n t o electrical energy.
- What is meant by the efficiency of a system?
- How can you find the efficiency of a system?
- What is meant by the term power?
- Define watt.
9th Class Physics Chapter 6 Long Questions PDF Download
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The topic of this post is Class 9th Physics Chapter 6 Work & Energy Long Questions Notes without any PDF file. We add this post to the 9th Class Physics Notes category where students can easily find the Long Questions type study solutions and much more that students need to be related to the Class 9 Physics Book.