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advanced higher physics past papers January 11, 2010

Posted by mrmackenzie in : AH Physics , trackback

Here are the links to past papers on the SQA site.  If you need an older paper, please come and ask.

2009

2008

2007

Comments»

1. Roddy - 12/01/10

Not relevant to past papers but I just thought this cleared up some of the ignorance we had about the LHC.

Once a beam of protons reaches the right energy level, the PS Booster injects it into another accelerator called the Super Proton Synchotron (SPS). The beams continue to pick up speed. By now, beams have divided into bunches. Each bunch contains 1.1 x 1011 protons, and there are 2,808 bunches per beam [source: CERN]. The SPS injects beams into the LHC, with one beam traveling clockwise and the other going counterclockwise.

Inside the LHC, the beams continue to accelerate. This takes about 20 minutes. At top speed, the beams make 11,245 trips around the LHC every second. The two beams converge at one of the six detector sites positioned along the LHC. At that position, there will be 600 million collisions per second [source: CERN].