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Magnetism C
供稿人: Barent
  • 1. Magnets have
A) domains
B) magnetic atoms
C) all of these
D) magnetic poles
  • 2. Like magnetic poles
A) stick to each other
B) behave the same
C) attract
D) repel
  • 3. Magnetic fields
A) are only located at the poles
B) are where the magnetic force is
C) are only located at the center of the magnet
D) do not exist
  • 4. Magnetic poles are
A) always south
B) always north
C) the weakest part of the magnet
D) where the magnetic energy is the strongest
  • 5. Elements like Iron are ferromagnetic. This means...
A) all of these
B) their domains are alligned
C) they have a magnetic field
D) electrons are spinning in the same direction
  • 6. Which magnetic properties does the earth have?
A) magnetic north and south
B) a magnetosphere
C) all of these
D) magnetic field
  • 7. Electricity
A) makes magnets stronger
B) does not affect magnets
C) turns magnets into turkeys
D) makes magnets weaker
  • 8. Which elements are magentic?
A) Iron, cobalt and nickel
B) cobalt and sodium
C) iron and lead
D) just iron
  • 9. How can a magnet be destroyed?
A) decreasing kinetic energy
B) bending
C) heating and dropping
D) breaking in half
  • 10. The rotation of the earth makes it an even stronger magnet
A) false
B) true
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