compound pendulum
Học thuậtThân thiện
Definition
- Noun:
- A compound pendulum is a physical pendulum consisting of a real, extended object of finite size that is allowed to swing or rotate freely about a fixed horizontal axis. Its period of oscillation depends on its mass distribution and the distance from the pivot point to its center of mass, unlike a simple pendulum which is an idealized point mass.
Usage Examples
- Noun:
- A swinging rigid rod is a classic example of a compound pendulum.
- The period of a compound pendulum is calculated using its moment of inertia.
- In the laboratory, we measured the gravitational constant using a compound pendulum.
Advanced Usage
- "center of oscillation": A specific point on a compound pendulum where, if all the mass were concentrated, it would behave as a simple pendulum with the same period.
- The center of oscillation and the pivot point are interchangeable for a compound pendulum.
Variants and Related Words
- Physical pendulum: A direct synonym for a compound pendulum.
- Simple pendulum: An idealized theoretical model consisting of a point mass on a massless string, contrasted with a compound pendulum.
Synonyms
- Physical pendulum: A pendulum with a distributed mass, as opposed to an idealized simple pendulum.
Related Phrases
- To act as a compound pendulum: To swing in the manner of an extended body rotating about a pivot.
- The gate, swinging on its hinges, acted as a compound pendulum.
Noun
- pendulum consisting of an actual object allowed to rotate freely around a horizontal axis