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CBSE Class 9

Class 9 Science Presentation PDF - Work, Energy and Simple Machines | Chapter 7

31-page English revision PDF on work, energy and power, with worked examples. Simple machines covered: pulleys, inclined planes and levers.

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Class 9 Science Presentation PDF - Work, Energy and Simple Machines | Chapter 7

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31 pages
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18.23 MB

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Class 9 Science Chapter 7 revision slides on selected topics from Work, Energy and Simple Machines.

  • Work, the joule, a force–displacement graph, and positive, negative and zero work.
  • Kinetic and potential energy, conservation of mechanical energy, and power.
  • Simple machines covered in the slides: fixed and movable pulleys, inclined planes, and the three classes of levers. Includes mechanical advantage.
  • Worked examples on negative work, gravitational potential energy, conservation of energy and power.

Format: One 31-page English presentation PDF. The five-page preview shows the chapter opening, definition of work, its SI unit and the force–displacement graph. The first worked numerical appears on page 8.

Related bundle containing this resource: Class 9 Science Presentation PDF Bundle | Chapters 2–13.

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Class 9 Science
Chapter 7

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Level Up

Level Up Academy offers school chapter PDFs, D.El.Ed revision notes and CTET practice resources. School learners: explore Class 8 Science, Class 9–10 Science and Social Science, Class 9 English Kaveri, Class 10 First Flight, and selected Class 12 Humanities and Accountancy resources. Start with the free 4-page Heredity sample to see the presentation style. D.El.Ed learners: choose first- and second-year subject notes, unit revision or model-answer practice. Start with the free 4-page Child Development sample, then compare the listed units with your institute's syllabus. The Year 1 bundle contains 10 subject PDFs and 245 pages. CTET preparation: choose revision notes, MCQ PDFs, focused practice tests or full Paper-I mocks. The ten full mocks use Language I English and Language II Hindi. Before choosing: check each listing's actual topics, language, page count and preview. Notes and presentation PDFs are read online in Testkart; downloads are disabled and editable PowerPoint/PPTX files are not included. Related chapter and subject bundles are linked in the listings.

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