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SHM Calculation: Force Constant (k) and Energy Ratio (potential & Kinetic) for a Simple Pendulum
SHM Calculation: Force Constant (k) and Energy Ratio (potential & Kinetic) for a Simple Pendulum

The value of the force constant (k) is approximately 0.0987 N/m}.The ratio of Kinetic Energy to Potential Energy at $x = 0.02 mis 24:1 (or simply 24).

SHM Calculation: Force Constant (k) and Energy Ratio (Potential & Kinetic) for a Simple Pendulum”

In this physics lesson, we explore the core SHM calculations related to a simple pendulum, focusing on two essential topics:
1️⃣ Force Constant (k)
2️⃣ Energy Ratio (Potential & Kinetic Energy)

This class is designed for HSC Physics (Class 11–12) students and anyone preparing for board exams or university admission tests.
Using easy-to-understand math, visual explanation, and step-by-step derivations, you will learn how SHM applies to the motion of a simple pendulum.

🎯 Perfect For:

HSC Physics Students (Class 11–12)

SHM chapter revision

Board Exam Preparation

Admission Test Candidates

Physics beginners who want concept clarity

🔵 What You Will Learn in This Video

✔ What is the effective force constant (k) in SHM?
✔ Deriving the expression of
𝑘
=
𝑚
𝜔
2
k=mω
2
for a simple pendulum
✔ Relationship between restoring force and displacement
✔ Understanding oscillatory motion using SHM formulas

✔ Energy in SHM explained clearly:

Potential Energy (PE)

Kinetic Energy (KE)

Total Mechanical Energy

How PE and KE change during oscillation

Ratio of energies at different positions of motion

✔ Energy Ratio Problems:

Finding PE/KE ratio

Calculating energy when displacement is a fraction of amplitude

Common exam-style numerical problems
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