Question

what is phenomenon resonance??

Answer 1

Resonance is a process in which energy is dissipated slower than it enters a system thus resulting in a temporary storage of energy within that system. Example a crystal glass "rings" when exposed to a sound that matches its characteristic vibrational frequency absorbing some of the sound energy and holding it for a while as can be seen by its l ringing for a while after the sound is turned off.

Answer 2

i am sorry, but i really don't get what you mean. i am a highschooler so the explanation above is a little to advance for me.

Answer 3

Are you familiar with the ringing wine glass in response to a singer or the "singing" of steel cables in the wind

Answer 4

yes, my teacher did mentioned something about the wine glass.

Answer 5

Things made of elastic material like glass,plastic or steel can be put into vibration by hitting it and will vibrate with a special frequency depending on the shape composition or even tension (guitar string). If a object is is subjected to a small force say due to wind pressure or sound pressure it will every so sightly bend, or flex or twist but these small forces are not constant so the the object relaxes somewhat but not absolutely retaining a minute amount of energy. Before that energy is dissipated by internal energy absorbing processes akind to friction.the wind, or sound exerts more force for a time and more energy enter the object adding a bit more energy to what was previously deposited but not yet dissipated. this continues until the energy in the object reaches an equilibrium with the dissipative mechanism or until it cannot hold the energy that it is taking in as in the case where the opera singer breaks the wine glass. The effect is large when the force is vibrating at the same nature vibration of the object and this is called resonance. You may find a car resonating (vibrating)at a certain speed due to the periodic vibrations generated by the wheels. A spectacular demonstration of resonance behavior is the destruction of the Tacoma Narrows bridge in Washington St. in 1940 due to strong winds causing a large low frequency vibration of the bridge structure. see http://en.wikipedia.org/wiki/Tacoma_Narrows_Bridge_(1940) for a film clip. Resonance was also blamed for the collapse of a sky walk in a Kansas City Hotel in the 1970's? when party of dancers set up a resonance situation on the walkway resulting in many deaths.

Answer 6

thank you, so much i understand it now

Answer 7

Excellent answer.

Answer 8

I'll add one thing: intuitively, if you push someone on a swing periodically (after a strict time period push again), the swing's maximum will be higher if you push it after a certain time period than others. This doesn't depend on the height it reaches at the point pushing, as the swing's swing period is not a function of its length, so if you get the right frequency, it will cumulatively add.

Answer 9

http://www.youtube.com/watch?v=ptgdgdZ6EBY

Answer 10

Resonance happens when the frequency of the force you apply to a system matches the system's own natural oscillation frequency.
Your input is "rewarded" with maximum amplitude in the oscillation.