Simple Pendulum

🌈 Simple Pendulum

🎯 Learning Objectives

• Understand the arrangement of a simple pendulum.
• Learn important terms like time period and frequency.
• Understand factors affecting time period.
• Identify second pendulum and its properties.

🧩 Competencies

• Conceptual Understanding – Oscillatory motion
• Observation Skills – Identifying pendulum parts
• Analytical Thinking – Relation between T and L
• Application Skills – Real-life pendulum examples
• Communication Skills – Explaining concepts

📊 Learning Outcomes

• Defines simple pendulum and its arrangement.
• Explains time period and frequency.
• Applies formula T = 2π√(L/g).
• Identifies factors affecting time period.

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🎥 Evidence (Student Demonstration)

Upload or embed video:

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📝 Worksheet (Who Am I - MCQ)

1. I am the heavy object tied to string.

Pivot Bob String Axis

2. I am the distance from pivot to bob.

Amplitude Length Frequency Force

3. I am time taken for one oscillation.

Frequency Time Period Speed Velocity

4. I am number of oscillations per second.

Time Period Frequency Length Force

5. I am central position of pendulum.

Extreme position Mean position Amplitude Motion

6. I am motion of pendulum.

Circular Oscillatory Linear Random

7. I affect time period.

Length Mass Color Shape

8. I do NOT affect time period.

Length Gravity Mass Time

9. My value is 2 seconds.

Simple pendulum Second pendulum Frequency Motion

10. I relate T and f.

T = f T = 1/f f = T None

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🧠 Higher Order Thinking Questions

1. Why does a longer pendulum take more time?

Because time period increases with length.

2. Why mass does not affect time period?

Because formula does not include mass.

3. Why pendulum stops after some time?

Due to air resistance and friction.

4. Why small oscillations are preferred?

To maintain constant time period.

5. Why pendulum clocks are accurate?

Because time period is constant for small oscillations.