Magnetism
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16 QuestionsShow answers
  • Question 1
    30 seconds
    Q. Magnetism is generated by moving
    answer choices
    protons.
    electrons.
    neutrons.
    elements.
  • Question 2
    30 seconds
    Q. What do the lines around this magnet represent?
    answer choices
    North Pole
    South Pole
    Magnetic Declination
    Magnetic Field
  • Question 3
    30 seconds
    Q. As the distance between two magnets increases (they get farther apart), the force between them:
    answer choices
    Increases
    Decreases
    Stays the Same
  • Question 4
    30 seconds
    Q. If you cut a magnet in half, what happens to the poles?
    answer choices
    One half gets the North Pole, the other half gets the South Pole
    Both halves get only a North Pole
    Both halves get only a South Pole
    Both halves get a North pole and a South Pole
  • Question 5
    30 seconds
    Q. What is responsible for the Magnetic Field around Earth?
    answer choices
    The Earth's crust
    The Earth's molton iron core
    The Earth's mantel
    The Sun
  • Question 6
    30 seconds
    Q. If the North Pole of a permanent magnet is placed next to a compass as seen in the picture, which direction will the needle move?
    answer choices
    Clockwise
    Counter-clockwise
    It will not move
    Need more information
  • Question 7
    30 seconds
    Q. An electromagnet's poles may be reversed by:
    answer choices
    decreasing the voltage of the coil
    increasing the number of coils
    changing the direction of current flow
    altering the material used to make the coils
  • Question 8
    30 seconds
    Q. Which direction is the North Pole of this electromagnet?
    answer choices
    Right
    Left
    Up
    Down
  • Question 9
    120 seconds
    Q. In un-magnetized materials the domains are __________ aligned.
    answer choices
    super
    slightly
    randomly
    always
  • Question 10
    120 seconds
    Q. Electric motors are devices that convert _____ energy into  _____ energy.
    answer choices
    electrical; mechanical
    mechanical; electrical
    chemical; potential
    mechanical; kinetic
  • Question 11
    120 seconds
    Q. What kind of magnet can be turned on and off?
    answer choices
    refridgerator magnet
    electromagnet
    magnetite
    iron
  • Question 12
    120 seconds
    Q. The strongest part of a magnet is...
    answer choices
    the bars.
    the force field.
    the poles. 
    the middle.
  • Question 13
    60 seconds
    Q.

    If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate?

    answer choices

    The magnetic field

    The electrostatic field

    The piezoelectric effect

    The chemical reaction of the magnet and the filings

  • Question 14
    30 seconds
    Q.

    What causes magnetism?

    answer choices

    the sun

    moving neutrons

    moving charges

    friction

  • Question 15
    30 seconds
    Q.

    How can a wire become magnetic?

    answer choices

    point it north

    add a resistor

    heat it up

    run a current through it

  • Question 16
    30 seconds
    Q.

    What device takes in mechanical energy and produces electricity?

    answer choices

    motor

    generator

    electromagnet

    battery

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