Class 9 Science Lesson Plan | Ch 10: Gravitation – Part 2 | Free Fall & Acceleration due to Gravity

Описание: 🌍 Class 9 Science Lesson Plan | Chapter 10 – Gravitation | Part 2 | Free Fall, Acceleration due to Gravity & Equations of Motion | B.Ed. Lesson Plan

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This video is Part 2 of Class 9 Science Chapter 10: Gravitation, where we study Free Fall, acceleration due to gravity (g), its derivation, calculation, and equations of motion for free-falling bodies in a step-by-step and exam-oriented manner.
This lesson is highly useful for Class 9 students, Physics teachers, and B.Ed. trainee teachers as per the NCERT syllabus.

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📘 Topics Covered in This Lesson (Part 2):

🔹 1. Free Fall

✔ Meaning of free fall
✔ Conditions for free fall
✔ Free fall under gravity only
✔ Examples of freely falling bodies

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🔹 2. Acceleration due to Gravity (g)

✔ Definition of acceleration due to gravity
✔ Direction of g
✔ SI unit of g
✔ Difference between acceleration and acceleration due to gravity

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🔹 3. Derivation of Formula of g

✔ Mathematical derivation using
    g = GM / R²
✔ Explanation of symbols
✔ Conceptual explanation with diagram

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🔹 4. Calculation of Value of g

✔ Substitution of known values
✔ Step-by-step calculation
✔ Standard value of g = 9.8 m/s²
✔ Significance of g on Earth

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🔹 5. Equations of Motion for Free Fall

✔ First equation: v = u + gt
✔ Second equation: s = ut + ½gt²
✔ Third equation: v² = u² + 2gs
✔ Application of equations in free fall problems

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🔍 Examples Explained:

• A stone dropped from a height
• Object thrown vertically downward
• Motion of a freely falling body
• Numerical-based explanation using equations

All examples are explained with proper sign convention, diagrams, and blackboard-style teaching.

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📘 Includes Complete B.Ed. Lesson Plan Format:

✔ General & specific objectives
✔ Teaching aids
✔ Introduction with real-life examples
✔ Presentation with derivations & equations
✔ Blackboard work
✔ Question–answer interaction
✔ Numerical practice
✔ Evaluation & homework (NCERT-based)

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🎯 Why This Lesson Is Important:

✔ Core numerical topic of Gravitation
✔ Very important for Class 9 examinations
✔ Builds base for higher Physics concepts
✔ Useful for B.Ed. lesson files & micro-teaching
✔ Helps students solve numericals confidently

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