Motion Graphs Class 9 Physics | Story + Rainbow Mindmap + MCQs + HOTS”

Story book 

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🌈 Motion Graphs (Class 9)

🔴 Introduction

• Graph shows relationship between variables
• X-axis → Independent
• Y-axis → Dependent

🟠 Graphical Representation

• Time on X-axis
• Displacement/Velocity/Acceleration on Y-axis
• Helps understand motion clearly

🟡 Types of Graphs

• Displacement–Time
• Velocity–Time
• Acceleration–Time

🟢 Displacement–Time Graph

• Horizontal → Rest
• Straight line → Uniform motion
• Curve → Non-uniform motion
• 

🔵 Velocity–Time Graph

• Horizontal → Uniform velocity
• Straight slope → Uniform acceleration
• Curve → Non-uniform acceleration

🟣 Acceleration–Time Graph

• Zero → No acceleration
• Straight line → Uniform acceleration
• Irregular → Non-uniform
• 
  
  

⚫ Slope & Area

• Slope (d-t) → Velocity
• Slope (v-t) → Acceleration
• Area (v-t) → Displacement
• Area (a-t) → Velocity
• 
  
  

🌈 Motion Graphs (Class 9)

🎯 Learning Objectives

• Understand different motion graphs
• Interpret slope and area
• Relate graphs with real motion

🧩 Competencies

• Analytical Thinking
• Graph Interpretation
• Problem Solving

📊 Learning Outcomes

• Identifies types of motion graphs
• Calculates slope and area
• Explains motion using graphs

📌 Evidence

• Correct MCQ responses
• Explains graphs in class
• Solves graph-based problems

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📝 MCQ Quiz

1. X-axis represents:

Time Velocity Acceleration

2. Slope of displacement-time graph gives:

Velocity Acceleration Distance

3. Area of velocity-time graph gives:

Displacement Velocity Acceleration

4. Straight line in v-t graph indicates:

Uniform acceleration Rest No motion

5. Zero slope in d-t graph means:

Rest Motion Acceleration

6. Area of acceleration-time graph gives:

Velocity Distance Time

7. Curved line in d-t graph shows:

Uniform motion Non-uniform motion Rest

8. Horizontal v-t graph shows:

Uniform velocity Acceleration Rest

9. Slope of v-t graph gives:

Acceleration Velocity Distance

10. Graph helps to:

Understand motion Increase speed Stop motion

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🧠 HOTS

1. Why are graphs better than tables?

Graphs show trends clearly and quickly.

2. What does negative slope mean?

Motion in opposite direction.

3. Why curved graph shows non-uniform motion?

Because speed changes with time.

4. Can area be negative?

Yes, depending on direction of motion.

5. What does zero acceleration mean?

Velocity remains constant.