ch3studyguide - Chapter 3 Interactions and Systems Study...

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Chapter 3: Interactions and Systems Study Guide Magnetic interaction : when two magnets either attract or repel each other o Transfers magnetic energy o Increase/decrease kinetic energy Action-at-a-distance interaction : objects can exert forces on each other without touching Ferromagnetism: having a high susceptibility to magnetization The Magnetic Field Invisible ‘field of influence’ around magnet Magnetic potential energy : decrease/increase form of energy associated with magnets Field energy source during interactions such interactions, with MPE being associated with magnetic field itself Systems and Energy Changes Single system : only energy transfer that took place was within system, from magnetic field to magnet- carts o Only energy changes that happened as result of this transfer were for components of system itself Energy Changes = 0 o Any energy changes that do occur must exactly cancel each other out so that total amount of energy in the system remains constant Closer magnets are, less magnetic potential energy
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