This is one of the first sets of harder problems I give my GCSE class in Yr 10. None of the questions are hard as such (except maybe the whale and finding forces using the acceleration).
However, I like these because students can’t go on automatic pilot, and there is a point to calculating weight, or whatever it is. I also get a sense of whether they are just saying they understand Newton’s Laws or if they are beginning to apply them independently. I can also check their identification of forces, rearrangement of equations and summation of vectors. They have practised all of this using simpler problems but here they are all mixed together. My students find them a struggle, but then claim that it shows them what to look out for and how to think and link all the concepts.
I always think I should do something similar at A level….
Anyway, here is a link to the resource, should you want to use it.
The reflective physics teacher 