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H&E Quiz Prep 4

Quiz by Betty

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20 questions
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  • Q1

    Opposite magnetic poles attract and similar poles repel.

    true
    false
    True or False
    30s
  • Q2

    Most materials are ferromagnetic.

    false
    true
    True or False
    30s
  • Q3

    Some magnets produce a stronger magnetic field than others.

    true
    false
    True or False
    30s
  • Q4

    Strong magnets can induce iron objects to become magnets.

    true
    false
    True or False
    30s
  • Q5

    Current through a coiled wire produces a weaker electromagnetic field than through a straight wire.

    false
    true
    True or False
    30s
  • Q6

    A changing magnetic field is required to induce current to flow in a nearby wire.

    true
    false
    True or False
    30s
  • Q7

    The earth’s magnetic north pole and geographical North Pole are the same.

    false
    true
    True or False
    30s
  • Q8

    The earth’s magnetic poles never change.

    false
    true
    True or False
    30s
  • Q9

    The south pole of a magnet is attracted to the earth’s magnetic north pole.

    false
    true
    True or False
    30s
  • Q10

    The earth’s magnetic field protects us from harmful radiation.

    true
    false
    True or False
    30s
  • Q11

    The earth’s magnetic field is increasing each year

    false
    true
    True or False
    30s
  • Q12

    Electric motors convert current into mechanical energy.

    true
    false
    True or False
    30s
  • Q13

    Generators use magnetic energy to produce mechanical energy

    false
    true
    True or False
    30s
  • Q14

    Magnetic fields are used to store information on computer hard drives.

    true
    false
    True or False
    30s
  • Q15

    Electrical and magnetic energy are closely related

    true
    false
    True or False
    30s

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