These are the Armadale Academy notes for unit 2 Electrical Phenomena.
AH unit 1 summary notes
Here are the summary notes for unit 1 from Armadale Academy’s site. I’ll post more revision notes and a selection of past papers over the next two weeks.
1999 Higher paper I
Here is paper I from 1999.
There is a complete set of answers for this paper here.
This paper is reproduced to support SQA qualifications on a non-commercial basis according to SQA conditions of use.
input devices in a voltage divider
This powerpoint file from the High School of Glasgow summarises the function of different electronic components and explains their use in common voltage divider circuits. There is a pdf version of the file below.
photoelectric effect
We looked at the photoelectric effect this week. There is a useful simulation of the photoelectric effect here. You can change the metal under investigation to confirm that different metals have different work function values. You can also vary the wavelength and irradiance of the light.
Notice that below the theshold frequency you can’t get any photoelectrons, even if you set the light to its brightest setting.
1998 Higher paper I
Paper I from 1998 is attached.
There is a complete set of answers for this paper here.
This paper is reproduced to support SQA qualifications on a non-commercial basis according to SQA conditions of use.