PhysicsSimple Harmonic MotionA-Level
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SHM Period Calculator

Time for one complete oscillation.

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Period

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Overview

This equation defines the mathematical relationship between the period of a repeating cycle and its angular frequency in simple harmonic motion. It represents the duration required for an oscillating system to complete one full cycle of 2π radians.

Symbols

Variables

T = Period, \omega = Angular Freq

Period
Angular Freq

Apply it well

When To Use

When to use: Use this formula when you need to determine the time for one full oscillation given the angular velocity or phase rate. It is applicable to any periodic system where motion is governed by a linear restoring force, such as ideal springs or small-angle pendulums.

Why it matters: Understanding the period is critical for engineering precision timing mechanisms, designing vehicle suspension systems, and analyzing acoustic waves. It allows researchers to predict the temporal behavior of physical systems ranging from molecular vibrations to structural oscillations in buildings.

Avoid these traps

Common Mistakes

  • Using f instead of ω without 2pi.
  • Mixing seconds and milliseconds.

One free problem

Practice Problem

A mass on a spring oscillates with an angular frequency of 4.0 rad/s. Calculate the period of the oscillation.

Angular Freq4 rad/s

Solve for:

Hint: Divide 2π (approximately 6.283) by the given angular frequency.

The full worked solution stays in the interactive walkthrough.

References

Sources

  1. Halliday, Resnick, Walker, Fundamentals of Physics
  2. Wikipedia: Simple harmonic motion
  3. Halliday, Resnick, Walker, Fundamentals of Physics, 10th ed.
  4. NIST Guide for the Use of the International System of Units (SI)
  5. Halliday, D., Resnick, R., & Walker, J. Fundamentals of Physics.
  6. OCR A-Level Physics A — Oscillations