Ahh, so I knew the laws, but am probably gonna look like a right derp getting the laws in the wrong order. Since I guessed which order they went in (first law, second law etc).
I related F=ma with centripetal acceleration. I remember referring to the force and how it correlates with F=ma. As
a=rv2 centripetal force is
F=rmv2. Saying it correlated with that equation, applying to circular motion.
For equal and opposite, I said there would be a reactionary force of friction acting opposite to the tension in the string. Since I just remembered this weird box question on one of the mock exams, where it had a box and a reactionary force acting directly away. I don't remember the exact properties of it, but it made sense to me it was more friction than anything.
And the motion of the ball is constantly changing. Which insinuates a force, the centripetal force, is an actingon it. Changing its direction.
There was the other criteria of how the string would never be horizontal. I just used logic for that. That the force would act on the part of the string which was closer to the center point, then later at the end point? Not very physic-ey so good bye marks for proper physics terminology.
I did the ISA, which was actually fairly easy. Conveniently a lot of similar questions to previous ISA's.
Our invigilator told us we had 4 minutes left, so I quickly randomly dotted stuff. Apart from the last question, which I was going at the time. I really dislike this invigilator. She once made me speed up on a C2 maths paper, by saying we had 5 minutes left. When actually WE didn't have 5 left, WE had 15. The other students had 5. But she never stated this. It caused me to make a crazy error in working losing me 3 marks on a question. Netting me 1 mark off an A overall for maths.
Considering how low grade boundaries generally are, I've probably got a mid or high B, possibly A if I'm lucky. That's usually how it goes with physics for me.