Simple Pendulum Calculator
Experience the fascinating motion of a simple pendulum with our interactive pendulum simulation tool. This online experiment allows students, teachers, and science enthusiasts to explore how gravity, length, mass, and angle affect pendulum motion in real time. With adjustable parameters and live charts, you can observe how the time period, frequency, and energy transform during oscillation. Designed as an educational and research-friendly platform, it accurately represents simple harmonic motion, energy conversion, and damping effects. Whether you’re preparing for exams, teaching physics, or conducting virtual experiments, this simulation helps visualize real-world motion patterns in an engaging way. Explore the laws of motion, test different gravitational forces like Earth, Moon, or Jupiter, and understand how a pendulum maintains balance and rhythm through physics principles—all directly in your browser, with no installation required.
How to Use This Tool
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Set Initial Parameters: Begin by selecting or entering the pendulum’s length and bob mass. These factors directly influence the pendulum’s oscillation period and frequency.
Adjust Gravitational Settings: Choose between Earth, Moon, Venus, or Jupiter to see how gravity affects motion. You can also input a custom gravity value for advanced experiments.
Control Damping (Air Resistance): Use the damping slider to simulate real-world air resistance and observe how it slows down the pendulum over time.
Start the Simulation: Click the Start or Play button to initiate motion. The pendulum begins swinging, and you’ll see real-time graphs displaying angle, velocity, and energy changes.
Analyze Results: Watch how potential and kinetic energy convert during each swing, and monitor time period or frequency changes on the live data panel.
Reset & Re-Test: Click Reset Simulation to modify variables and perform multiple tests for accurate comparison and understanding.
Use for Learning or Teaching: Great for visual demonstrations in classrooms, online lectures, or personal learning sessions to master simple harmonic motion (SHM) concepts interactively.
Use Cases
- Calculate the time period of a simple pendulum for physics experiments.
- Understand the relationship between pendulum length and oscillation speed.
- Compare pendulum motion under different gravitational accelerations.
- Teach or demonstrate harmonic motion principles in schools or labs.
- Quickly verify theoretical results using online calculations.
Key Features
Accurate Physics Formula
Uses the standard T = 2π√(L/g) equation for precise results.
Instant Calculation
Instantly computes time period and frequency with one click.
Custom Gravity Input
Test pendulum behavior under different gravity values (Earth, Moon, etc.).
Educational Visualization
Displays step-by-step calculation and formula explanation.
Responsive & Lightweight
Works smoothly across devices — no downloads or registration.
Unit Flexibility
Supports metric and custom units for scientific accuracy.
Frequently Asked Questions
A simple pendulum consists of a small bob suspended from a fixed point by a string or rod, which swings back and forth under the influence of gravity.
This online pendulum simulation models the motion using physics equations for simple harmonic motion, allowing you to adjust parameters like length, mass, damping, and gravity.
Yes! You can select different gravitational values such as those on Earth, Moon, Venus, or Jupiter to observe how gravity affects the pendulum’s time period.
Yes, the simple pendulum simulator is completely free to use online without any installation or registration.
You can explore the time period, frequency, and energy transformation of a simple pendulum, along with understanding how gravity and damping influence motion.
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👨💻 About the Developer
Muhammad Abid Rahimi
Professional full-stack developer with expertise in creating high-performance web applications and tools. Specializing in PHP, MySQL, JavaScript, and modern web technologies. Passionate about building user-friendly interfaces and scalable backend systems that deliver exceptional user experiences.