2009+-+4*+Physics+P

=America's Next Top Science Rockers!!=

What we know starting out
> All these girls think they got dibs
 * Sound is in Sine waves
 * Instruments make sound by vibration
 * High pitches have a shorter period; low pitches have a longer period
 * Speed of sound?
 * Big waves = deeper sound
 * Music is sound as an art form - woooooah
 * Music is made of sound with rhythm
 * Yo, my name is Daniel Gibbs/
 * Changing size of string/instrument = different notes - dimensions
 * Measured in frequency/amplitude/wavelength/period/
 * Echo location - bats, blind people, dolphins, sound bouncing off walls and returning to the source in order to locate things

What we need to learn about:

 * Echolocation
 * Why are there 12 notes in a chromatic scale?
 * Basic music skillzzz
 * How did they decide on the specific frequencies for each note?
 * How do we transfer into notes
 * How do you measure frequencies
 * What are frequencies?
 * How to build an instrument? What do we need to know? Distance, timing, design it for right frequencies,
 * Material types, how sound interacts with those
 * Need to know about Brass, Percussion, Wood Wind, String, how to build each type
 * What are our groups? Why so many PROJECTS?
 * Context is important. Interact with it on a fundamental level. More interested. Likely to understand it better.
 * What are the ways to change pitch and volume -Tyler Finley
 * how do materials affect the sounds of things-Tyler Finley
 * Why can dogs hear higher pitches than humans? -Adele M.
 * How is sound affected by traveling through different states of matter? -Adele M.
 * how do we tune the instruments? - Matt DeSantis
 * how do we measure the flats, sharp, major and minor notes? - Matt DeSantis
 * how do we modify the instruments so it can be hooked up to an amplifier?- Kevin Saicheur
 * who are the people to asked in how to play certain instruments? - Kevin Saicheur
 * How will we learn to play a song on our intruments? -Antonia D.
 * What eight notes should we use to make our intruments? -Antonia D.
 * Are we going to be assigned a song to play? Or do we pick our own? (Hasan Shaik)
 * What are the requirements that our instruments have to meet? (Hasan S.)
 * how will we know that our instruments have the right sound? - Melissa M.
 * is every group playing the same song? - Melissa M.
 * Do we need to compose our own song? - Harry G.
 * Are we allowed to use water in our instruments? (ex: bottles with water) - Vanessa G.
 * Can we make more than one instrument? - Harry G.
 * Will we have to find/buy most of our own materials? - Vanessa G.
 * When are we going to perform? Emily H.
 * What materials are needed to make different types of instruments? Emily H.
 * We won't be graded on our musical talent (or lack thereof), right? - Miranda L.
 * How can matching the frequency of another object break it? -Miranda L.
 * What are the best materials to use to make the instrument? Khaliq M.
 * Whats tools are we goin to be using in class to build the instrument? Khaliq M.
 * Are there any specific materials that we have to use? -Korri L.
 * Will some of the materials be provided for us? - Korri L.
 * How difficult must the song were playing be?- K.A.
 * What if members of the group want to play really weird instruments that can't be really used in a band?-K.A.
 * if we have to buy our own materials then do we have a budget -ZB
 * how much is this project worth in terms of project points - ZB
 * When are we going to work after school -BC
 * how long are we able to work after school- BC
 * How does breathing or buzzing into an instrument such as a flute or trumpet produce specific notes? - M.S.
 * If you were, deaf, what range of sound could you hear or feel? - M.S.
 * do we have to tune guitars to eadgbe or can we use whatever we want? B.C.
 * How do we know if our instrument is in tune? JK
 * Will we get extracredit if our instrument can play more than 1 scale? JK
 * If you were being electricuted, and you started screaming, would the energy flowing through your vocal cords speed up their vibrations making your voice supersonic? -Daniel Gibbs
 * Could you go deaf if you played a noise above 20,000 HZ loud enough? -Daniel Gibbs

Notes from class/What we have learned so far
Date:3/20 Notes: the string is talking to nicole to amplify sound, we need something to vibrate, and material to make the vibrations bigger good amplifiers are: large surface area, hollow, thin, vibrateable, hard, low density, conical (to focus sound)

Date: 3/24 Notes: shorter things have higher pitches higher tension gives higher pitch in general, smaller volumes produced smaller pitches more mass = lower pitch longer things have lower pitches diameter doesn't have as much of an effect as length for wind, but it does on strings and percussion exciting it by affecting it in some way, changing properties changes the **NF** 1Hz = 1 cycle per second (frequency)
 * Natural Frequency**: everything has a frequency it likes to vibrate at based on core characteristics

3/30 from friday: There are two types of waves- transverse and longitudinal length of pin on music box determines tone of sound changing frequency/period of waves changes the sound amplitude frequency wavelength period velocity=wavelength x frequency velocity of a wave depends on the medium it is traveling through and nothing else frequency is the number of cycles per unit of time length of one cycle is a wavelength center to crest/troph is amplitude

Who is building what
This is a list of who is building what, add yourself to the list. If you are building something similar to someone else in the class (or any class for that matter), you can discuss ideas or problems with them

Percussive Instruments
Antonia Darragh (Xylophone)