Ary you interested in studing Engineering? As you know, you will need excellent maths and physics skills.
i-want-to-study-engineering.org is a website resource to help you to develop your abilities and compete for Engineering courses at top universities. It includes an A level problem index. Here is an example of a problem from the C1 section. See how you get on:
Sketch the curve y = 2x2 − x − 6, giving the coordinates of all points of intersection with the axes.
Further information is available in the King's advice on maths and physics for Engineering.