# Quantum Physics Science Advanced Project

1. ### The12thDoctor

12
So, I love physics and math. I have my first Science fair coming up, and I've dreamed about this day since I was five. Putting my knowledge into work that my peers can judge, and maybe spark interest in Physics for someone else. What project could I do that is Quantum Physics or really any non-elementary field of physics. Please keep in mind, I'm only 14 and this is AP. Am I aiming to high. I thought of the Double Split but something a crowd could learn from. Thanks

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2. ### Simon Bridge

15,261
Welcome to PF;
The classic quantum experiment is 2-slit interference - but that also works by wave-optics.
If you can get hold of florescent light bulbs, you can use interference to show discrete spectra.
The main restriction is what sort of resources you have - quantum experiments can get expensive very fast.
Maybe have a look at: http://www.diyphysics.com/

3. ### Khashishi

You can do double-slit with water, if you prefer. Then you don't need to muck around with lasers.
Other ideas:
chaos pendulum
Heron's fountain
bicycle wheel angular momentum thing
Brownian motion with a microscope
Non-newtonian fluids
motors (homopolar, etc)
van de graff generator
railguns, coilguns
radioactivity and photographic film (do they let kids get their hands on these things nowadays?)

4. ### TheDemx27

142
A couple years ago in eighth grade my science project was 2 things: A iron and magnesium battery, the electrolyte being table salt suspended in water. The second thing I made was a cloud chamber.

9. ### Simon Bridge

15,261
In a wave delivery - the red light should eventually produce a current - when it has delivered enough energy.

The slam-dunk would be to show the absorbtion spectrum for the LED... requires a tuneable light-source.

The trick is to set up the wave theory predictions to disprove.
The black box effect can be mitigated by also showing the discharging electroscope.
Should be good enough for a science fair. Good call.

Perhaps: show heating metal by electricity to get light (light bulb) point out reverse is possible: discharge electroscope. Explain wave picture predictions. Repeat experiment with LEDs to contradict wave picture predictions. (current in = particular light out)?

I don't see any way to avoid some bold assertions.
But it should be fun.