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Vibration, periodic back-and-forth motion of the particles of an elastic body or medium, commonly resulting when almost any physical system is displaced from its equilibrium condition and allowed to respond to the forces that tend to restore equilibrium. Vibrations fall into two categories: free.
- Damping
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- Forced Vibrations
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- Natural Vibration
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- Resonance
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- Damping
Vibration (from Latin vibrāre 'to shake') is a mechanical phenomenon whereby oscillations occur about an equilibrium point.
You will learn that waves come from many interconnected (coupled) objects when they are vibrating together. We will discuss many of these phenomena, along with related topics, including mechanical vibrations and waves, sound waves, electromagnetic waves, optics, and gravitational waves.
- Bobblehead Dolls - An Example of A Vibrating Object
- What Causes Objects to vibrate?
- The Restoring Force
- Other Vibrating Systems
To begin our ponderings of vibrations and waves, consider one of those crazy bobblehead dolls that you've likely seen at baseball stadiums or novelty shops. A bobblehead doll consists of an oversized replica of a person's head attached by a spring to a body and a stand. A light tap to the oversized head causes it to bobble. The head wiggles; it vib...
Like any object that undergoes vibrational motion, the bobblehead has a resting position. The resting position is the position assumed by the bobblehead when it is not vibrating. The resting position is sometimes referred to as the equilibrium position. When an object is positioned at its equilibrium position, it is in a state of equilibrium. As di...
A vibrating bobblehead often does the back and forth a number of times. The vibrations repeat themselves over and over. As such, the bobblehead will move back to (and past) the equilibrium position every time it returns from its maximum displacement to the right or the left (or above or below). This begs a question - and perhaps one that you have b...
As you know, bobblehead dolls are not the only objects that vibrate. It might be safe to say that all objects in one way or another can be forced to vibrate to some extent. The vibrations might not be large enough to be visible. Or the amount of damping might be so strong that the object scarcely completes a full cycle of vibration. But as long as ...
A vibration is a periodic back and forth motion that remains fixed in one location. Examples of vibrations include a swing moving back and forth (like a pendulum) or a mass bobbing up and down on a spring. The video below demonstrates this periodic back and forth motion using the example of a swing set.
May 24, 2023 · A vibration is a repeated motion of a particle when displaced from its resting position. On the other hand, a wave is a disturbance or a vibration that travels and carries energy from one point to another. Vibrations and oscillations are the sources of all waves.
Vibrations and Waves. Lesson 0 - Vibrations. Vibrational Motion. Properties of Periodic Motion. Pendulum Motion. Motion of a Mass on a Spring. Lesson 1 - The Nature of a Wave. Waves and Wavelike Motion. What is a Wave? Categories of Waves. Lesson 2 - Properties of a Wave. The Anatomy of a Wave. Frequency and Period of a Wave.
