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  • CLASS XI - XII
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CRASH COURSE
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The Science New NCERT Class 9 PDF: Work, Energy, and Simple Machines is specially designed for Class 9 students according to the latest NCERT and CBSE syllabus. This chapter explains the concepts of work, energy, and power in a clear and student-friendly manner. Students learn how force applied on an object causes motion and how energy is transferred in daily life situations. Important topics such as kinetic energy, potential energy, mechanical energy, and conservation of energy are explained with simple examples and diagrams.

Work, Energy, and Simple Machines
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The book also introduces simple machines such as levers, pulleys, inclined planes, wheel and axle, and screws that help reduce effort and make work easier. Clear illustrations, solved examples, and chapter exercises improve understanding and problem-solving skills.

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