simple pendulum
Definition
Noun: A simple pendulum is a theoretical or idealized physical model consisting of a point mass (the bob) suspended from a fixed point by a massless, inextensible string or rod of constant length, swinging under the influence of gravity without any friction or air resistance.
Usage
The term is used primarily in physics and engineering to describe a fundamental model for analyzing periodic motion. It serves as a simplified system for studying concepts like harmonic motion, period, and frequency. * The period of a simple pendulum depends only on its length and the acceleration due to gravity. * In introductory physics, students often calculate the motion of a simple pendulum before studying more complex oscillators.
Advanced Usage
- "Ideal simple pendulum": Used to emphasize the theoretical, frictionless nature of the model, distinguishing it from any real-world pendulum.
- An ideal simple pendulum would swing forever with a constant amplitude.
Variants and Related Words
- Pendulum (n): The general term for any body suspended from a fixed point so it can swing freely. A is a specific type of pendulum.
- Physical Pendulum / Compound Pendulum (n): A pendulum where the mass is distributed over a finite volume (like a swinging rod), as opposed to the point mass of a .
Synonyms
- Ideal pendulum
- Mathematical pendulum
Related Concepts (Not Phrasal Verbs or Idioms)
- Period: The time for one complete cycle of swing.
- Amplitude: The maximum angular displacement from the vertical.
- Simple Harmonic Motion: The type of oscillatory motion a approximates for small angles.
Noun
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a hypothetical pendulum suspended by a weightless frictionless thread of constant length
