Magnetism has always been seen as one of the most exciting and interesting topics of physics byudboth scientists and common folk alike. Such enthusiasm is the result of the rather extraordinary,udinvisible forces of magnetic attraction and repulsion caused by magnetic fields. Today, with theudhelp of Faraday’s Law of Induction, Lenz Law, Meissner Effect and many more contributions toudthis area, we are able to understand the nature of magnetic forces and experiment on them. Forudmy project, I questioned “How does mass affect the magnetic repulsion force applied on it by audmagnetic field?”.I decided that Elihu Thompson’s Jumping Ring Mechanism would be the bestudway to perform my experiment. Therefore, to test different masses, I worked with 20 aluminumudrings which I will explain with detail later in Introduction and Method. In order to be able toudmeasure the difference in the magnetic repulsion force, I chose to measure the vertical distanceudthat the aluminum rings jumped, as an indicator of the repulsion force. I recorded my trials toudexamine, with a camera. Later, in order to better observe the relation between mass and verticaluddistance covered by the rings, I repeated my experiment but with cooling down the rings beforeudthe trials by using liquid nitrogen. Still, I investigated the relation between mass and the verticaluddistance and this second experiment allowed me to see that the temperature shift made the ringsudmore conductive and made them cover more distance. However, the pattern between mass anduddistance stayed the same. In both experiments as mass increased the distance increased, from audpeak point on as mass increased the distance decreased. My experiments provided me with anudunderstanding of how mass affects magnetic repulsion force and possible ways of usage of thisudphenomenon.
展开▼
