(due date: Saturday, 8/8, midnight)
To complement our week investigating quantum mechanics, we’ll start with a video and end with a simulation in a manner similar to last week. Though, the video is much shorter (just over 53 min) and the simulation doesn’t require Java.
Steps:
Mo’ background, first!
Watch “The Fabric of the Cosmos, Hour 3” on the NOVA site. It will be fascinating and useful! It is 53 minutes long.
http://www.pbs.org/wgbh/nova/physics/fabric-of-cosmos.html#fabric-quantum
Write a short summary (at least 1/2-page).
Discuss 3 things from the video you found most interesting or to be most important.
Discuss 2 things you didn’t quite understand, and describe what information you think you would need to better understand them.
Pose 1 question regarding quantum mechanics.
Double Slit
Now, we use a simulation for the double-slit experiment. The simulation shoots one electron at a time at an adjustable rate (1 per second, 3 per second, 6 per second).
Determine the problems:
What will be the pattern observed on the screen when 1 electron is fired per second?
How will this pattern change when 3 electrons are fired per second? When 6 are fired per second?
Develop hypotheses.
Go to the simulation: http://www.upscale.utoronto.ca/PVB/Harrison/DoubleSlit/Flash/Histogram.html
Test each of your hypotheses.
Draw a conclusion based on your observations. Does the result fit with what you’ve read and watched?
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