How Does This Sound..?

  Hey guys! Today I will be talking about sound. So recently I have become pretty much obsessed with that show, "Switched at Birth", and I am learning some really cool sign language! I would show you if I could... but anyways when Mr. Sellers told us we were learning about sound I immediately thought of that show and how hard it would to be deaf... not able to hear music... yeah that'd suck. I also thought of how I get to post charlieissocoollike's video on sound! WAHOO! Anyways, now that my awesome but totally off topic intro is done... let's start.

  Sound can make you think of many things... music, audio books, even just another person talking to you. But do we ever think about the science behind it? HAHA, I know I don't. This reminds me of a time when my grandpa asked me if I knew how a record player worked. I said "Yeah, of course." kind of uneasily. "You put the record in and it plays music!" Yeah... I need to learn a little more.

  Okay, so now let's talk about some basic elements of sound. Sound is actually a vibration that travels through air made by whatever produced it. Echolocation uses sound to see if they are things in bodies of water, and it used by bats and dolphins. They send out loudly pitched sounds (it must have a high frequency) and the sound bounces back to them so they can detect where whatever theyre searching for is. Now for some vocabulary words! 

Loudness: A human's version of explaining how much energy a wave is carrying. Remember, the more energy a wave is carrying the louder the sound is. Same goes with amplitude. So if you're at a house party, and you say "TURN THE MUSIC DOWN!" and then the other person says "TURN THE MUSIC UP? OKAY!", those waves would be carrying alot of energy :)

Create a gif

Pitch: The certain frequency of a sound. If a sound has a high frequency it will have a HIGH pitch. If a sound has a low frequency it will have a LOW pitch.

Amplitude: Basically the same as frequency. Higher means higher sound. Lower means lower sound.

Echo: When a noise hits a wall, the higher frequencies usually get absorbed. But, if a wall is hard enough then the sound will bonce off, and create and echo-o-o-o-o.

  Now I'm going to explain the doppler effect. Remember the video on lights I showed you last post? Yeah, I'm going to explain it like Charlie because it sounds so much easier. The Doppler Effect is the change in a frequency of a wave when it is moving relative, or away, from you. So if a police car passed you, as it was coming towards you, the pitch of it's sound would be higher, and this is because the sound waves get squished up. As it was going away from you, the pitch would be lower, beacuse the sound waves get stretched out. Below is an extraordinary picture I MADE. 

  Here it is, what you've all been waiting for..... the video. YAY IT FITS PERFECTLY! 

  So that is my blog... hope you enjoyed. SuperSaraSuperBye!

Oh Meeba's Blog (Fatima)

Kiwi's (Or preferably LaTisha's) Blog
Logan's Blog

Website I used for Eccholocation

Sound for those younger folks