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Physics of Sound

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Some of the physics of Sound

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when you think about that you told me with these hundreds and thousands of cheese about what's going on in your environment every day trip safe and sound in addition to things I speak music today and I'm going to buy a baby crying in the Next Room house wax I'm just thinking about microphones and speakers who comes down to the fact that sound of the waves with travel through medium like Arabic I know your sound is a wave is important because it means that we can use the physics of ways to describe the quality of the sound what do you think of the way he probably think of the kind you see at the ocean or the ones you made when you jumped on that trampoline those ties ways that run perpendicular to the direction of the way is traveling at this time as the other kind of wave is a longitudinal wave meaning of the ways back and forth motion happened in the same direction in which the wave travels they get a text message on your phone and it makes a nice bright something found what actually happened Mike you'll find speaker. Maybe actions molecules in the MF back and forth then there is very possible for a person to be around them and ask the price of continues the sound waves spread out with sorry I'll turn this off now anyway the movement of known as a displacement Wave by moving particles in the sound waves also do something else do I have to wait for STD at the possible then. together in some cases and spreading out those together and spreading out of high-pressure and low-pressure to form and move through the devices that detect changes in pressure friend's wife example I use a diaphragm stretched over steel compartment the sound waves tossed by they create areas of low Ohio pressure in the compartment for which electronic then translate into basically watching the same way a pressure wave pulse through your brain that interprets those vibrations bouncer we need more about physics humans with describing sounds intense qualities made me buy things like mountainous and pit understanding of course he's helped shape the development of Music hello and it corresponds to the frequency of the wave vibrating back and forth more times 2 seconds will have a higher pitch and a vibrating see what times 2 seconds will happen in 22nd Omaha I think I told you it needs more of the sounds that help us to detect sounds we talk to me is the ability to hear the higher-pitched sounds some building security companies will take advantage of the night people over the age of twenty-five, Yadira kids and teens can hear it and it's super annoying to them they might hang out near the building too high or low fat any humans to hear sounds that is too high in pitch or cold on the sound good at too low a cold dog whistles fries on pootie's ultrasonic pitch this too high for us but it's perfectly ordered both dogs communicate with each other through Columbus the week on him at all another aspect that shakes sound is its loudness when you increase the intensity of the sounds you increase is loudness and vice-versa measured in what meter Square what is the portion of the range of sound wave intensity generally people can say he has found some about 1 people per square meter which of the which of the way for samples and intensity of a 101 roaring Gap pain but there is a reason why the people that work on the tarmac airport uses heavy duty headphone piece of Wrath of the Titans Bubba whoop- Juanita they can't hurt or is it is a good thing about loudness and intensity of relationship relationship what's the middle of the range of the frequencies we can hit with mixed out whatever notes on the stylist Evan the previous one for the intensity of 1 Peter walked per square meter corresponding to zero Bells found this one Bell is 10 times as intense as the sound at 0 belt to Val's is 10 times as intense the sound that one Bell but a hundred times as intense as astounded they write about measuring everything about can be kind of annoying because sometimes you want to talk about sounds that a saved 3.4 belt without having to deal with decimal points that's why most of the time you'll have describe using the multimedia decibel unit of about intensity give one pick up a square meter number if I tend to get the sound stuff about level we can use this equation to convert the intensity of that noise emote Concepts which we said was one walk per square meter to decibels of a 1p qawwal pequenita now 1 / 1 * 10 - 12 is just one x 10 to the 12th what we really want to do is take the base 10 log of 1 x 10 to 12 or trillion walk to me to square what's an algorithm of you today if I find a power that I would need to raise the base to in order to get the number in parenthesis and otherwise we're looking for the exponent of 10 that would equal 1 * 10 to the 12th which is just 12 of intensity we multiply that by me I tend to get the decibel level of the mole concept when you was dancing and 20 decibels that makes sense because you are stupid the sound the grace of the intensity of the way if it hits you it have you ever noticed that the pitch of the sound changes to call the doctor effect as a source of sound moves and is this post moves away to pitch decrease see why am I seeing you standing on the sidewalk when someone leaves an ambulance siren startup is coming from down the road and it seems to be moving to Woody the amulet discontinuity in the bathroom speakers be in the form is that fine ambulance needs to review the ambulance an awesome even supposed to sound wave therapy for your air drums excited together even though they're moving at the same speed and you get hit by the more often which means that you had a higher-pitched sound at the same time you keep the missing boy found which has more people does Alia sound waves still heading your way where you end up with is a sound wave with a higher frequency than the. So you hear a sound is higher in Pitch than the one you had when the amulet is that away from me. The ambulance passes you install to drive away down the road the opposite happened sounds waves still coming to the Angeles is driving away from them the pinks that hit your eardrum farther apart and you hear a sound with a low of hitch certified is it only you need to Soundwave it happens if you like to which means we can actually use it to measure the distance to stars but no I'm not much like the differences in pressure the office happy intensity of a sound wave changes with altitude in distance finally recovered that's about as well as his daughter okay High School Civics Kennewick check out the playlist of the latest episode from shows TGI Fridays, and it's okay to be smart this episode of Crash Course is going to adults hair styles p Kenny crash course PDF with the help of these amazing people and are equally amazing graphic tee mitzel Cafe

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