1. Something that is magnetic has magnetic fields. The fields start at the North Pole and go around the magnet, and terminate at the south pole of the magnet. All <span>magnetic substances have north and south poles.
2. A</span>n electric field is the area that surrounds an electric charge an magnetic field is the are of the force around the magnetic poles it is induced by <span>emf.</span>
The substances for moving things is that they are in motion which is Kinetic Energy
The SI unit for the amount of substance present is the mole.
The mole is defined as the amount of substance that has the same amount of particles as there are atoms in 12 grams of carbon-12. Mathematically, the moles of a substance may be computed using:
moles present = mass of substance / molecular mass of substance
Well, it introduced atoms in this world and their functions. When the theory of atoms were created many more theory's came and we slowly figure out what the atoms do and what their functions are. The theory of an atom really surprised people because most of the people never knew the possibility of having living things inside of them.
Hope this helps.