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What are we going to teach in Science ( Physics )in Class 9th in Rebellion Classes


 CHAPTER-WISE BREAKDOWN (WITH “BEYOND NCERT”)

 1. Motion

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 NCERT Covers

  • Distance, displacement

  • Speed, velocity

  • Acceleration

  • Graphs

 Beyond NCERT

  • Relative motion (basic intuition only)

  • Direction-based thinking (vector intro without heavy math)

  • Uniform circular motion (why velocity changes even if speed constant)

 Olympiad Focus

  • Trick questions:

    • Distance ≠ displacement

    • Graph interpretation traps

  • Multi-concept MCQs

 Foundation Approach

  • Graph-based numericals

  • 2-step problems (velocity + acceleration combined)


🔹 2. Force & Laws of Motion

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 NCERT Covers

  • Force, inertia

  • Newton’s laws

  • Momentum

Teach Beyond NCERT

  • Free Body Diagram (FBD) basics  (very important for JEE)

  • Types of forces (contact/non-contact deeper clarity)

  • Real-life applications (friction intro)

Olympiad Focus

  • Concept traps:

    • Action-reaction confusion

    • Inertia vs force

  • Assertion-reason questions

 Foundation Approach

  • Simple FBD-based numericals

  • Momentum conservation (basic problems)


 3. Gravitation

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 NCERT Covers

  • Gravitation law

  • Free fall

  • Mass vs weight

  • Pressure

 Teach Beyond NCERT

  • Variation of g (basic idea)

  • Buoyancy deeper logic (why objects float/sink)

  • Density-based thinking

Olympiad Focus

  • Conceptual questions:

    • Weight in lift

    • Floating conditions

  • Unit-based traps

 Foundation Approach

  • Formula-based numericals

  • Multi-step (density + volume)


 4. Work, Energy & Power

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 NCERT Covers

  • Work

  • Energy (KE, PE)

  • Power

 Teach Beyond NCERT

  • Work done at angle (basic intro)

  • Energy transformation chains

  • Efficiency (basic concept)

Olympiad Focus

  • Zero work confusion

  • KE vs momentum comparison

 Foundation Approach

  • Formula derivations (simple)

  • Mixed problems (energy + motion)


 5. Sound

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 NCERT Covers

  • Sound waves

  • Frequency, amplitude

  • Reflection

Teach Beyond NCERT

  • Wave equation logic (v = fλ intuition)

  • Echo conditions derivation (basic)

  • Medium effect comparison

 Olympiad Focus

  • Graph-based wave questions

  • Concept traps (loudness vs pitch)

 Foundation Approach

  • Numerical problems using formula

  • Multi-variable questions

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