solutions to higher physics unit 2 practice NAB

Sorry folks, the link I put up here earlier did not have the answers to the practice NAB for unit 2 of Higher Physics.  I’ve written my answers for you instead, with mark allocation indicated down the side in red.

Download a copy using the link below.

2 thoughts on “solutions to higher physics unit 2 practice NAB

    • Oops! You’re mixing up the relationships for capacitors with those for charged particles in an electric field. If there is a 1/2 in the equation, it’s a capacitor equation. The 1/2 part comes from a unit 2 experiment where energy stored by the capacitor is found to equal the area under a graph of charge vs voltage, hence E = 1/2 x base x height = 1/2 x Q x V.

      In the SQA blue booklet, the capacitor equations are all in a row.

      SQA use W=QV for Work Done on the charge by the electric field but in the Int2/Standard Grade section, Ew is used to represent work done (as in Ew=Fd). E=QV is another way of writing this same relationship. Check your notes and see which way your teacher showed it. It will be at the very start of your unit 2 work.

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