ISA practice papers - homework

Half term homework is to finish the table graph from Friday's practice ISA ,and to attempt one of the other ISA papers uploaded on this blog but NOT p11 - look under February/March 2012 where there are 4 past papers, markschemes and task sheets. 
Come to the first lesson back with table, graph and any queries you have.

Upcoming Physics events - discovering planets from your sofa and much more

The next three Physics events at the Physics department are detailed below, booking is now open, hope to see you there!

http://www2.physics.ox.ac.uk/events

How to discover a planet from your sofa, and other adventures.

Date: 11 Mar 2013 - 6:00pm - 7:00pm

Venue: Martin Wood Complex, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU

Audience: General public (Age 12+)

Oxford astronomer and BBC Sky at Night co-presenter Chris Lintott invites you to the magical world of the Zooniverse, where you can discover planets, explore distant galaxies and even travel on World War 1 ships without leaving your browser. The Zooniverse is the world's most popular collection of citizen science projects, which use the power of human pattern recognition to help scientists deal with millions of images and gigabytes of data.

Neutrino - the invisible messenger

Date: 18 Mar 2013 - 6:00pm - 7:00pm

Venue: Martin Wood Complex, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU

Audience: General public (Age 14+)

Neutrinos are the most abundant particle in the universe and yet very little is known about them. They have no charge and are at least ten millions time lighter than the electron. They see almost all matter as transparent as vacuum which makes them very difficult to study. Without the existence of large source of neutrinos like the sun, cosmic rays or man-made nuclear reactors we may have never known about them.

Date: 19 Mar 2013 - 6:00pm - 9:00pm

Venue: Denys Wilkinson Building, Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH

Audience: General public (Age 8+)

Stargazing Oxfordshire - Astronomy Evening

Find out more about research in astrophysics from professional scientists, and observe the night sky with your local community astronomers.

Mars Lecture - Monday 4th Feb 6pm, free

Milankovic on Mars

Date: 4 Feb 2013 - 6:00pm - 7:00pm

Venue: Martin Wood Complex, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU

Room: Martin Wood Lecture Theatre

Audience: General public (Age 14+)

The surface and atmosphere of Mars continue to be the target for intensive exploration by robotic spacecraft such as NASA's Curiosity Rover and Mars Reconnaissance Orbiter, and the results are being modeled in increasing detail using sophisticated numerical models, much like the ones used to predict climate variability on Earth - with Oxford playing an important role in both kinds of activity. It now seems clear that, as on Earth, the Martian climate is very dynamic and continually changing and evolving, at least partly in response to cyclic changes in the planet's orbit and rotation on millennial to million year timescales. This is much like the orbital cycles on Earth that control the onset of ice ages, discovered by Milutin Milankovic in the early 20th century. In this talk we will explore the evidence for geologically recent and fairly extreme climate changes on Mars, examining the implications for where water (thought to be essential for any prospect of life) resides in the Martian environment, both now and in Mars' past and future.

Mini bio

Peter Read is a Professor in the Department of Physics, and Fellow and Tutor in Physics at Trinity College, University of Oxford, UK. In the Department he is currently Head of Atmospheric, Oceanic & Planetary Physics, which is one of the six sub-Departments within Oxford Physics.

12a work Friday 23rd November

Hello Y12, sorry I was not there for our lesson today - I will be back P4 for 12b.
12a work is as follows;
1. Research emission and absorption spectra for elements.  Make notes on what they are and what they show - this is a tricky idea but it relates to the absorption and emission of photos of particular colours between energy levels of atoms as we showed in the models we did in class with Starburst.   Bring you notes and diagrams to the lesson next Friday for us to discuss
2. What is the photoelectric effect what was observed and how did Einstein explain it with photons? Another tricky but key idea for us to discuss on Friday - can you come up with a model to explain what is going on?

3. What are the energy levels in a hydrogen atom, and why is n=1 labelled as negative?

Thanks, Ms Hamnett

Stargazing Oxfordshire – astronomy evening

Stargazing Oxfordshire – astronomy evening

 

Find out more about research in astrophysics from professional scientists, and observe the night sky with your local community astronomers.

Tuesday 20^th November 2012 – entrance from 6.00pm

More information and booking can be found here: http://www2.physics.ox.ac.uk/events/2012/11/20/stargazing-oxfordshire. We will be running similar events in January and March.

Particle physics tips

• KNOW YOUR FORMULA SHEET
• Hadrons feel the strong nuclear force and are made of quarks
• Baryons are made of three quarks, mesons are made of two quarks (a quark and antiquark)
• Protons are uud, neutrons are udd
• Baryons eventually decay into protons (protons are the only stable baryon)
• Neutrons decay into a proton, an electron and an antineutrino (beta minus decay)
• Protons decay into a neutron, a positron and an neutrino (beta plus decay)
• Hadron – heavy and strong  Lepton – light and weak
• Leptons have a lepton number of 1 (or minus 1 for antiparticles) and lepton number is conserved
• Leptons can change into other leptons during decay via the weak interaction
• Strangeness is conserved in a strong interaction
• K mesons are strange particles (containing a strange or antistrange quark) formed through the strong interaction and decay through the weak interaction into π mesons, muons and antineutrinos
• π  mesons Charged π mesons decay into muons and antineutrinos (or antimuons and neutrinos), π zero pions decay into photons
• Muons decay into electrons and antineutrinos (or antiparticles)

Particles progress test on Friday 7th November

This is for both y12 groups, there will be an electricity question too.  half ter homework is to revise and complete kerboodle work
Thanks and happy half term!