1. The problem statement, all variables and given/known data Let's say I have a magnet with a strength of 30 G's (Gausses). I place a pen just close enough to feel the pull of the magnet. How could I determine how fast that pen is traveling towards the magnet? 3. The attempt at a solution The stronger the field , the more pull the magnet has on the pen. Thus it follows that such a thing could be calculated if I could find an equation to first determine how much physical energy is being placed on the pen. Then, I can use the work force equation to determine the acceleration.