Magnetism Flashcards

793288509	Magnet	Can create magnetic effects by himself.
793288510	Magnetic Poles	North and South
793288511	North and South ________	Attract
793288512	South and South _______	Repel
793288513	North and North_______	Repel
793288514	Magnetic Field	Has a quantity in all points in space.
793288515	Source Magnet	Magnet that creates a field.
793288516	Magnetic Field Lines	-Point in the direction of the force on an imaginary north pole test magnet. -Always point away from north pole and towards south pole.
793288517	Electromagnets	Magnets created by electric flow in wires.
793288518	Right Hand Rule	Way to find magnetic poles.
793288519	Each electron in an atom behaves like a _______	small loop of current forming it's own miniature electromagnet.
793288520	Diamagnetic	Magnetic fields in the electrons cancel each other out. ex. Lead and Diamonds
793288521	Parametic	Electrons don't cancel each other out completely, so even (ex) aluminum can have north and south poles.
793288522	Solenoid	Name of a coil of wire you can run electricity through.
793288523	True/False: All metals are magnetic.	False
793288524	Give two ways you can increase the power of an electromagnet.	-More Batteries -Add an Iron Core -More Coils (ask)
793288525	What is the only thing you need to create an electromagnet?	Wire
793288526	Earth is what kind of magnet?	Bar
793288527	The North magnetic pole is near the geographic _____ pole.	South
793288528	The south magnetic pole is near the geographic _______ pole.	North
793288529	Magnetic Declination	Magnetic Poles move a little every year.
793288530	The needle in a compass actually points ______.	to the south magnetic pole, but is painted red and called north.
793288531	True/False: The more north you get, the more accurate your compass gets.	False
793288532	The "Magnetic Ridge" is between what two countries?	USA and UK
793288533	The newest samples of molten rock from the Magnetic Ridge is found where?	Closest to the magnetic ridge.
793288534	Earths Magnetic Field gets weaker by ______ each year.	7%
793288535	What power sources use Electromagnetic Induction?	Hydroelectric, Wind....
793288536	Electromagnetic Induction	You can cause electrons to move through the wire by pushing a bar magnet in and out of the coil, which forces the electric current through the wire.
793288537	Alternating Current (AC Current)	Alternates 60 times per second because the turbine spins 60 times per second.