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Download the 26 sprites and 34 scripts of "Waves on a string" and open it in Scratch Project Notes
A remix of DarthPickley version of Paddle2See project "Good Vibrations".
Here you can change the angular frequency and the amplitude of the simple harmonic motion of the first particle.
Also, you can create pulses on the string by clicking and dragging the hand or another particle.
Choose "fixed end" or "loose end".
It works better in presentation mode.
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Nice wave simulation... Studends will learn radians eventually...
This is really nicely done! A wonderful interface. I'm a little confused on your choice of units on the frequency though...it looks like you went with radians per iteration...not very easy to explain to a student.
You are right about radians! I wonder why the project doesn't work with "Energy ratio" greater than 0.93! Thanks.
(view all replies)Wow, this is great! I've seen "wave simulations" before, but never one on Scratch...
Thanks, The-Whiz! If you like look at another approch in Scratch (link to project)
I love it. Je ne comprends pas comment il fonctionne (trigonométrie ?). Je vais demander.
Thanks. If you like look at Paddle2See's original project.