If I have a magnet of known strength (say 3 Tesla) and I have a solid iron sphere of 1 kg and it is positioned 2m from the magnet, how do I go about calculating its acceleration and so its final velocity upon reaching the magnet? Do I need to worry about gravity and starting height? I'm obviously going to ignore air resistance.. I'm really sorry if I've missed something obvious, but I've been thinking about this for ages. I think the reason I might be struggling is that I'm unsure of exactly what "1 Tesla" actually means.. I've looked up the definition but I'm still feeling shaky on it. :shy: Thanks if you can help. I'm sorry I can't give anything back to these fora yet, hopefully one day I'll get more confident with my Physics and be able to help some others out!