Electronic Oscillo-keyboard Every sound is made when something vibrates. Sometimes it's the skin stretched across a drum, sometimes it's a plucked string. By fine-tuning the amount of what is vibrated, you can make notes. Scientists and engineers use a tool called an oscilloscope to compare different waves, including sound waves. The "oscillo-" part of the word means "swing", just as in the word \"oscillate.\" This keyboard has an oscilloscope built in! Musicians don't usually pay any attention to the shape of the waves, but this special instrument makes sound, lets you see the wave a physicist would see it, and then lets you play around with a note. Procedure: Open the keyboard: https:/ickyforster.itch.io/oscillo-board ?secret=g5BvVPYh3KPDs19ugvAuxKI5Nm 1. Use your cursor to "press" keys on the keyboard. Note the frequency in hertz (Hz) and the shape of the wave here for three notes. Frequency Wave shape 1. 2. Click on the "Play with a wave" switch. Change the shape of the wave by clicking on the sliders next to square, sawtooth, triangle, and sine. Listen for the difference in the tone and watch how the curves chan when the keyboard is set to sine, square, and triangle. Change the shape of the wave by sliding the frequency slider back and forth. Observe how the wave in the window changes. * Change the shape of the wave by sliding the volume slider y the wave in the window changes. ge for the same key P and down. Observe how 3. Musicians call "middle C" the note that is 261,63 Hz, Can you find the note corresponding t middle C, also known as C4? How about a note that is twice 99 Its frequency, C5. at about 523 Hz? 4. Musicians often tune their instruments using the "A4" note, which is the "A" just above middle C. Its frequency is 440 Hz. Can you find the key corresponding to A4? neg wov belandiv el tariw lo Income erdi prilout-on vaporle banging Be Think about it. Answer the following: How are volume and amplitude related? qoocollideo na cellso loot dean ensor airT 'stelllogo" blow orit mies levi ,"priwe" ansem throw er to hec tored How do the different shapes (square, sawtooth, triangle, and sine) sound different? rtliw buoys velq boy elel noril bos di see blow lajoievila s evew sill see voy el munson's Describe what the waves look like for high versus low notes. bisodyed efl no even "zestq" of 1080 woy beU to egsrie ends brie (sH) shoni ni yoneupset arti aloft How does pitch or frequency affect the waveform on an oscilloscope? go fol sten evew brit eqsne aveW How do the curves compare for keys whose frequencies are 440 and 220 Hz? How do the sounds compare when the same note is played as a sine, square, or triangle waveform? rollwe "evsw s willw golf" out no dolla s rugotwee isupa of men arebile ant no pablollo vd ovswell to equrte and sports yet amse arlf 101 genero saving ent work nofew bris enol ail ni sonsieflib end of Role