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