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thank you! i will include some info in my discussion but there is one problem my school's ripple tank is not really modernize, it does not have an oscillating paddle and stroboscope :( What other methods can there be? The ripple tank only consists of the glass, wooden frame and a white screen below it to see the waves.
I think It said on there that letting water drops fall in would create noticeable waves! :)
Is there a solid piece of something for water to flow over for refraction?
can a piece of wood work?
Yeah, I would think so! I've never worked with these, I just gave you a resource! You'll see the wood's shadow, but I would think it'd be fine!
hmm ok one more question, whats the difference between refraction, reflection and diffraction? :/
Reflection is the easiest, because we see it everyday! Are we talking about light?
When water hits a surface, it will be redirect at an angle from the normal that it came from.|dw:1378684726434:dw|One sec!
I'm not used to working with water, but I know that it will follow that. It will loose some kinetic energy, but it's direction will work like that, somewhat.
hmm now i understand! Is that reflection?
And I don't think that a piece of wood would work for refraction...
That is reflection, yes! The pesky thing about water is that it sticks to itself. That property of water is called cohesion, and many liquids have it.. So when water hits a wall...|dw:1378685238503:dw|other water will go with the flow... But the basic principle is visible, especially in larger tanks!
When I draw arrows, they're really like the propagation of waves, in case that wasn't clear. Refraction is due to a change in the wave speed. The picture below is pretty rough. But I look at one wave front. When it passes over the triangle, the water is shallow and the wave is slower. I don't know why, but it is! Now, in the picture, I draw parts along the wave as they travel in a certain amount of time. You'll see that the wave that is in the deep section longer goes farther because it is in the "fast lane" longer. The water that spends more time in the shallow section doesn't go as far, because it's stuck in the slower area for longer. |dw:1378685386304:dw|
|dw:1378685881570:dw| You can see how the wavefront looks, now.
alright :) and diffraction?
I'm not too sure about how diffraction works, sorry! You can see what it looks like in that Wikipedia article, though!
oh ok thanks for everything!! ^_^
You're welcome! Good luck and have fun with the ripple tank!
thanks i will !