Question about the principle of conservation of energy

Mick_Grif

The teory states that energy can neither be created or destroyed it can only change from one form to another well
Sound is a form of energy right, well if i play music in my room, or make a noise and then stop, where does the noise go? What is it changed into?

Podge_irl

Sound is just vibrations of air. The energy of them dissipates as they travel through the air through friction, heating effects etc much like the motion of anything is damped (its a little bit harder to visualise perhaps because a sound wave isn't a "thing" but it slowly loses energy just as an object moving through air).

amen

you hear the sound as it is causing the air molecules to vibrate which in turn hit your ear causing it to vibrate and thus you hear the sound. At each vibration a little energy is lost and eventually after enough hits it dies away.

Of course the air molecules are also hitting every object in your room causing heat, secondary vibrations etc.

Joey the lips

The theory states energy cannot be created or destroyed but converted from one form to another. It is clearly converted from sound waves to electrical energy which your brain converts back to an image or in this case a sound.

Here is a tricker one! If I play this guitar in space I will never hear it cause of the presence of the vacuum. Sound cannot travel through a vacuum so what you can learn is although sound is a form of energy it cannot be created without the right conditions

Morbert

Mick_Grif wrote: »

The teory states that energy can neither be created or destroyed it can only change from one form to another well
Sound is a form of energy right, well if i play music in my room, or make a noise and then stop, where does the noise go? What is it changed into?

Heat