Compléter PhysicsVersion en ligne Review about Physics concepts par Handy Armenta 1 phenomena universe motion force practical applications energy medicine technology scientific fields galaxies natural science behavior crucial role studies matter Physics engineering scientific disciplines smallest fundamental time space industries subatomic particles goal is the that , its and through and , and the related entities of and . Physics is one of the most , and its main is to understand how the behaves . It encompasses a wide range of , from the to the largest . Physics plays a in many other and has in various , including , , and . 2 each force charges piece along iron attract the magnet south direction Magnetism aligned iron north Opposite poles piece motion atoms magnet exerted other north Magnetism is the force by magnets when they or repel each other . is caused by of electric . All magnets have and poles . poles are attracted to other , while the same repel each . When you rub a of a , the - seeking poles of the in the iron line up in the same . The generated by the atoms creates a magnetic field . The of has become a .
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