Chapitre 15
Oscillations
Mouvement harmonique simple
Simple harmonic motion is the name given to oscillatory motion for a system where the net force can be described by Hooke's law. If the net force can ...
Caractéristiques du mouvement harmonique simple
The key characteristic of the simple harmonic motion is that the acceleration of the system and, therefore, the net force are proportional to the ...
Point d'équilibre d'une oscillation
Stability is an important concept in oscillation. If an equilibrium point is stable, a slight disturbance of an object that is initially at the stable ...
Énergie du mouvement harmonique simple
To determine the energy of a simple harmonic oscillator, consider all the forms of energy it can have during its simple harmonic motion. According to ...
Fréquence du système ressort-masse
One interesting characteristic of the simple harmonic motion (SHM) of an object attached to a spring is that the angular frequency, and the period and ...
Mouvement harmonique simple et mouvement circulaire uniforme
While simple harmonic motion and uniform circular motion may be two separate concepts, they correlate and interlink with each other. Simple harmonic ...
Résolution de problèmes : énergie dans un mouvement harmonique simple
Simple harmonic motion (SHM) is a type of periodic motion in time and position, in which an object oscillates back and forth around an equilibrium ...
Pendule simple
A simple pendulum consists of a small diameter ball suspended from a string, which has negligible mass but is strong enough to not stretch. In our daily ...
Pendule de torsion et pendule physique
A torsional pendulum involves the oscillation of a rigid body in which the restoring force is provided by the torsion in the string from which the rigid ...
Pendule physique
When a rigid body is hanging freely from a fixed pivot point and is displaced, it oscillates similar to a simple pendulum and is known as a physical ...
Mesure de l’accélération due à la gravité
Consider a coffee mug hanging on a hook in a pantry. If the mug gets knocked, it oscillates back and forth like a pendulum until the oscillations die
...
Oscillations amorties
In the real world, oscillations seldom follow true simple harmonic motion. A system that continues its motion indefinitely without losing its amplitude is ...
Types d'amortissement
If the amount of damping in a system is gradually increased, the period and frequency start to become affected because damping opposes, and hence slows, ...
Oscillations forcées
When an oscillator is forced with a periodic driving force, the motion may seem chaotic. The motions of such oscillators are known as transients. After ...
Caractéristiques de la résonance
If a driven oscillator needs to resonate at a specific frequency, then very light damping is required. An example of light damping includes playing piano ...
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