1) The domain theory of magnetism mainly explains.. a) The motion of electrons around the nucleus b) The origin of magnetism in materials  c) The conduction of electricity in metals d) The refraction of light in glass 2) Which type of material is best explained by domain theory? a) Plastic b) Copper c) Glass d) Iron  3) A magnetic domain is.. a) A region where atoms vibrate in harmony b) A region where electrons stop moving c) A region where atomic magnetic moments align in the same direction  d) A point where two magnets join 4) When a ferromagnetic material is unmagnetized, the domains are.. a) All aligned in one direction b) Pointing north only c) Randomly oriented d) Divided equally into N and S poles 5) Which of the following metals shows magnetic domains? a) Aluminum b) Nickel c) Silver d) Copper 6) The diagram below shows domains in a.. a) Fully magnetized material b) Unmagnetized material c) Diamagnetic material d) Perfect conductor 7) When a ferromagnetic material becomes magnetized, its domains.. a) Disappear b) Shrink to zero size c) C. Align mostly in the same direction d) Rotate continuously 8) The boundary between two magnetic domains is called.. a) Domain wall b) Equator line c) Neutral line d) Magnetic equinox 9) The strength of a magnet depends on.. a) The number of aligned domains  b) The number of neutrons in the nucleus c) The number of free electrons in the material d) The size of the material only 10) Which of the following does not affect domain alignment? a) Stroking with a magnet b) Applying an external magnetic field c) Strong mechanical impact d) Painting the material 

Explain the domain theory of magnetism

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