ATAR Notes: Forum

VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Physics => Topic started by: thatricksta on June 08, 2011, 08:40:29 pm

Title: "GeV" Unit of energy
Post by: thatricksta on June 08, 2011, 08:40:29 pm: the neap 2007 exam (old study design) makes reference to GeV as a form of energy.

Do we need to know what this is?
Title: Re: "GeV" Unit of energy
Post by: moekamo on June 08, 2011, 08:46:30 pm: its just an alternate form of the Joule, eV stands for electronvolt and you'll need to know it next semester.

$1eV = 1.602 \times 10^{-19} \mbox{ Joules}$

so $1GeV = 1.602 \times 10^{-19} \times 10^9 = 1.602 \times 10^{-10}\mbox{ Joules}$
Title: Re: "GeV" Unit of energy
Post by: Lasercookie on June 08, 2011, 08:50:30 pm: Electron volt (eV) was covered in units 1&2. I don't know if we need to know it, but I seriously doubt we would be examined on it this unit (that's just my opinion).

From memory 1 eV is a unit of energy that is equal to 1.6×10^-19 Joules (might want to double check that number). I think one electron volt was the energy gained by a single electron moving through a potential of one volt.
Title: Re: "GeV" Unit of energy
Post by: forumguy on June 08, 2011, 10:02:40 pm: It keeps popping up in STAV exams, (09 and 10)

I had to leave the questions both times when they cameup, in the relativity section