A1 practical: Measuring g (card drop) support
All you need for this method is a photo gate (plus interface etc.). The photo gate has many uses so its worth having a class set (one for each pair of students) which means that you could do this as a class practical. The advantage of having everyone doing the same practical is that you can talk about the results with the whole class and everyone knows what you are talking about. An alternative to this method is to...