Earlier this week, we used semi-circular perspex blocks to investigate total internal reflection. I’ve put together a short video showing total internal reflection in a semicircular block and a perspex model of an optical fibre. total internal reflection from mr mackenzie on Vimeo. There are some nice ray diagrams explaining total internal reflection on BBC ... Read moretotal internal reflection
The period (T) of a simple pendulum can be calculated using where l is the pendulum length and g is the gravitational field strength. Using a single value of length and period, we can determine the acceleration due to gravity. However, it would be better experimental practise to vary the length of the pendulum and ... Read moreusing linest to obtain a gradient and uncertainty
Here are the answers to the waves & radiation questions.
I’ve put together a collection of exam questions from old standard grade and intermediate 2 papers that fit the national 5 curriculum. Try these before moving on to past papers and check your answers using the solutions that I will post next. No cheating!
I’ve attached a short guide to half-life calculations. There are some questions after each worked example, answers are at the end of the sheet.
I have attached revision notes from Scholar for the Electromagnetism unit. Your test will be after the Easter holidays.
We’ve examined the operation of a Geiger-Müller counter as part of the radiation topic. image by Theresa Knott The Geiger-Müller (GM) counter is used to detect ionising radiation such as alpha and beta particles or gamma rays. The radiation enters through a very thin window at one end of the tube. This window is usually made ... Read morethe geiger-muller tube
You should be thinking about getting some of your project report finished so there is less to do when the deadline approaches. You can start writing up your underlying physics section and sort out the references you will include at the end of the report. I’ve attached a guide on referencing in the Vancouver style. ... Read morereferencing guide for AH project report
Here are the unit 2 study notes from Scholar that you asked for. Please do try logging in to Scholar and trying their interactive study materials.
Here are the solutions to the Electricity & Energy questions. Mark allocations are highlighted in red.