# Questions tagged [oscillators]

A mechanical or electronic system or device that works on the principles of oscillation, that is a periodic fluctuation between two things based on changes in energy. These range from abstract models such as a harmonic oscillator to electrical devices such as an LC circuit.

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### Rule swing with spring experiment: how can I modify it?

Basically I want to replicate this experiment (https://youtu.be/GqPGbHq2fxU). It's a ruler oscillating with one fixed end and one end attached to a spring. In my previous experiment, I used a short ...
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### What are the best intuitive books to learn in-depth about waves and oscillations? [duplicate]

I was looking for a book/s that does not necessarily use a textbook-esque approach (e.g just providing definitions, equations, and examples) but dives deeply into the philosophy behind their mechanism,...
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### How to correlate the frequency of source to The frequency of particle just between the two medium while transmission and reflection of wave?

When a pulse travels through rarer to denser medium,two new waves (reflected and transmitted) are formed from incident wave,While the wavelength of the Transmitted wave differs from wavelength of ...
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### What curve does a stiff whisker flexing in oscillation due to inertia express? [duplicate]

Take a short length of stiff but flexible straight wire (I used ~5cm of ~0.1mm diameter brass) and hold it tightly at the base, then flick the tip. The wire will then rapidly oscillate in flexing back ...
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### What is and what isn't considered an oscillation? And why?

If oscillations are periodic motions, is circular motion of an object with constant velocity also considered an oscillation, even though absolute value of its velocity and its acceleration are ...
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### Conservation of energy while swinging on a swing without slack

So I have an issue with the following classical problem: Let's say you are on a swing of length $l$ hanging downwards, and you get pushed in a horizontal direction with speed $v_0$. How large should ...
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### Is there any concept of "time difference" between oscillations(with same angular frequency) ? If yes, then how do I visualise it? [closed]

I encountered this question - "Two particles are oscillating along two parallel lines, with the same frequency and amplitude. They pass each other, moving in opposite directions when their ...
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### A rule for when phase-space orbits may cross

Note: in this question when I talk about "phase space," I will be refering to velocity vs. position space, which can also be correctly referred to as "state space." Many sources (...
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### Condition for true periodicity

In Vibrations and Waves, French writes that The condition for any sort of true periodicity in the combined motion is that the period of the component motions be commensurable- i.e., there exist two ...
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### Motion of an $n$ mass $n$ spring system [closed]

While reading wave motion I encountered the problem of $n$ identical masses with $n$ identical springs in between them. If we give a sudden push to the wall attached to the first spring, what will ...
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### Oscillating solutions to Friedmann equations

Does homogeneous and isotropic Friedmann cosmologies allow for periodic (simple harmonic solutions) Universes? Can they (universal oscillators) solve the issue of the initial (or future) singularities?...
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### Would it be correct to state that the damping force and the spring force are equal in the case of critical damping?

(Note: this question is for a spring mass system moving through air) Intuitively it makes sense to me that they would be equal to each other, but I have not found a clear answer referencing the forces....
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### Simple pendulum using plane polar coordinates: where did I miss a minus sign? [closed]

Suppose we want to write the equation of a simple pendulum using plane polar $(r,\theta)$ coordinates with the point of suspension as the origin and with $\theta$ increasing anticlockwise from the ...
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### Time period of spring pendulum

If in a car moving on circular path (uniformly with speed $v$) a spring pendulum is suspended then why is its time period independent of $g$ and acceleration of car even though both gravity and pseudo ...
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### Why is there a difference between single and double compound pendulum's kinetic energy equation?

When calculating equation of motion of single compound pendulum, kinetic energy is taken as $K= I\dot{\theta}^2/2$ (See). But when it is double compound pendulum, kinetic energy of the first pendulum ...
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### Does this question have two answers correct?

A simple pendulum (whose length is less than that of a second's pendulum) and a second's pendulum start swinging in phase. They again swing in phase after an interval of $18$ seconds from the start. ...
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