Year 13 Special Relativity Links

The Einstein video link; there are links to a lot more useful info here http://www.physics.org/article-interact.asp?id=53 Some links to a series of thought experiments on special relativity http://aether.lbl.gov/www/classes/p139/exp/gedanken.html

Year 13 Electron tunnelling

Heisenberg thought experiment website - some interesting background information

http://www.aip.org/history/heisenberg/p08b.htm

Schrodinger wave equation background
http://www.physlink.com/education/askexperts/ae329.cfm


Exam question
In an STM, explain why electrons can cross the gap between the tip of the probe and the surface, provided
• the gap is sufficiently narrow
• a potential difference is applied between the tip and the surface.

Year 12 projectile motion

Year 12, here is a link to an excellent simulation for projectile motion - explore the variables to get a feel for it
http://phet.colorado.edu/en/simulation/projectile-motion

Year 13 Homework assignment 17th March

Stopping potential experiment and presentation.
You will need your readings of stopping potential and wavelength. Calculate the frequency for each wavelength of light that you used. Then plot a graph of stopping potential (y)against frequency (x).
The equation that relates these quantities is
eVs = hf −φ
Rearrange this to find the equation for your straight line graph. What is the gradient of your graph? What should it be? How accurate was your experiment?
Prepare a short 5 min presentation on the workings of one of these microscopes; EITHER an STM or a TEM for next Thursday. Good luck!

Here is an excellent website with loads of info, practice questions and answers for the Turning Points topic. It deals with wave particle duality and relativity - it is from an older specification of AQA. Enjoy!

http://www.antonine-education.co.uk/Physics_A2/Options/Module_8/Topic_3/TOPIC_3.HTM