Faraday's law lab

Click on the link and follow the instructions.  Starts easy and then gets more complicated, persevere!
http://www.scribd.com/doc/75113995

No lesson for WAL on Monday 5th December - cover below

Cover work for Monday's lesson is to go through the multiple choice Unit 4 paper, linked below, and bring answers to next lesson.  Part of Examiners report with answers also linked below.
http://www.scribd.com/fullscreen/74700836?access_key=key-6e4li8omvwi0dxl46kz

http://www.scribd.com/doc/74701579?secret_password=asvul3bks2b9hyvzpkr
Thanks
Ms Hamnett

magnetic flux stuff

A useful website for magnetism and induction
http://www.s-cool.co.uk/a-level/physics/electromagnetic-induction/revise-it/flux-flux-linkage-and-how-do-you-induce-an-elect

Introductory work on EM induction

This work will form a solid background for all the work we do on magnetic fields and it is VERY important that you complete it to a high standard in order to avoid us falling behind.

• What is electromagnetic induction and how can it be demonstrated? What is required for the phenomenon to be observed?
• Research and write working definitions of the following terms;
• Magnetic flux
• Magnetic flux density
• Tesla
• Flux linkage
• Induced EMF
• Rate of change of flux linkage
• Faraday’s Law
• Lenz’s Law
• Transformer

Capacitor simultion

Link http://phet.colorado.edu/en/simulation/capacitor-lab

Learning Goals:

Students will be able to:

• Identify the variables that affect the capacitance and how each affects the capacitance.

·         Determine the relationships between charge, voltage, and stored energy for a capacitor.

·         Relate the design of the capacitor system to its ability to store energy.

Directions:

1.      Using the first 2 tabs , voltmeter, and battery, find variables that are used to design a capacitor. List them all.

2.      Identify what you would maximize or minimize to make a capacitor with the greatest capacitance. Are there items in the sim that do not appear to affect the capacitance? List them.

3.      Using the first 2 tabs , voltmeter, and battery, explore the relationships between charge, voltage, and stored energy for a capacitor. Summarize your findings.

4. If you wanted to design a capacitor system to store the greatest energy, what would you use? Sketch or describe your design.

Electric potential link

§http://www.s-cool.co.uk/alevel/physics/electric-potential/electric-potential-v.html

Some useful worked examples etc for electric fields

Time travel?

http://www.livescience.com/16207-faster-light-discovery-time-travel.html
A good article about the possible implications of the neutrino experiment.  Some good links too, but ignore the dodgy google ads, especially if they use the word quantum...

Half term homework

Draw up a table to compare gravitational and electric fields, listing their similarities and differences. Use these features: what does a field line show, attractive or repulsive, uniform field strength, units for field strength, radial field strength, and add more of your own.  Bring these to the first lesson back after half term. There will also be work set on kerboodle.
Ms Hamnett

Gravitation and mechanics test

Test for 13b is now on Tuesday 11th October -REVISE

Test next Thursday

There will be a short progress test on gravitation next Thursday 6th October for both classes

Link to press release about OPERA speed of light results

http://press.web.cern.ch/press/PressReleases/Releases2011/PR19.11E.html

Why can energy sometimes be negative?

Think about this in relation to today's work, and read around this in Dobson.  Bring your graphs of g against distance from planet to to the next lesson (Tues for 13b, Thurs for 13c)

Welcome to Year 13 Physics 2011

Hello Y13 Physicists.
Here is a reminder of the work set for my absence on Tuesday 20th September

Kepler's Laws - what are they in brief, how did he come up with them, and how are they linked to Newton's Law of Universal Gravitation. Please bring to your next lesson.
There will be some work coming up on kerboodle as well.

Y13 Relativity links

The link below is the directory to several excellent explanations of various so-called paradoxes in relativity - click on the individual ones to view http://hyperphysics.phy-astr.gsu.edu/hbase/relativ/

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

Kerboodle

Just in case anyone has forgotten the kerboodle website, the link is below
www.kerboodle.com

Welcome to Physics A-level

Welcome to the Cheney School Physics A-level blog. Here you will find interesting links, assignments, notes, presentations, exam questions and much more. Feel free to add appropriate comments, questions or links of your own, which will be monitored by me before being released.
Enjoy!
Ms Hamnett