Pêndulo Físico T
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The Physical Pendulum Period Calculator is an online tool that calculates the oscillation period of a physical pendulum. The period is calculated using the formula T = 2π·√(I/(mgd)), where I is the moment of inertia of the pendulum about the axis of rotation, m is the mass of the pendulum, g is the acceleration due to gravity, and d is the distance between the axis of rotation and the center of mass of the pendulum.
The calculator works by taking the values of I, m, g, and d as input. With these data, the calculator applies the formula to calculate the oscillation period of the pendulum. Note that the moment of inertia I depends on the shape and mass distribution of the pendulum and must be calculated separately. The acceleration due to gravity g is approximately 9.81 m/s² on the Earth's surface.
The physical pendulum calculator is useful in various situations, such as studying oscillatory motions in physics, engineering, and other fields. For example, it can be used to calculate the oscillation period of a real pendulum, like a pendulum clock, or to simulate the behavior of oscillatory systems in laboratories.
When using the calculator, it is essential to pay attention to the units of measurement. The moment of inertia I should be in kg·m², the mass m in kg, the acceleration due to gravity g in m/s², and the distance d in meters. Additionally, it is crucial to ensure that the input values are realistic and correspond to the characteristics of the pendulum being studied.
Frequently asked questions
What is a physical pendulum?
A physical pendulum is an oscillatory system consisting of a rigid body suspended by an axis of rotation, allowing it to oscillate freely under the influence of gravity.
What units of measurement are required to use the calculator?
The required units are: moment of inertia I in kg·m², mass m in kg, acceleration due to gravity g in m/s², and distance d in meters.
How to calculate the moment of inertia I?
The moment of inertia I depends on the shape and mass distribution of the pendulum. It can be calculated using specific formulas for different geometric shapes or measured experimentally.
Can the calculator be used for real pendulums?
Yes, the calculator can be used to simulate the behavior of real pendulums, such as pendulum clocks, as long as the values of I, m, g, and d are known and realistic.
What are the precautions when using the calculator?
It is essential to ensure that the input values are realistic and correspond to the characteristics of the pendulum being studied. Additionally, it is crucial to use the correct units of measurement.