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Force, motion and magnetism

  •  English    17     Public
    Force, motion and magnetism
  •   Study   Slideshow
  • What is force? (Think about the video of Grover from Sesame Street)
    a push or a pull
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  • What is a push?
    a force that moves an object away
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  • What is a pull?
    a force that brings an object closer
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  • Give an example of a push.
    Various answers
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  • Give an example of a pull.
    Various answers
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  • What is motion? (Think about the activity we did with the balled up paper or the sock.)
    movement or a change in position
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  • Think about the activity we did with the balled up paper or the sock. How did we change the motion of the objects?
    Possible answers: Tossed it in air, threw it harder, hit it. (Reminder: Forces change the motion of an object. Motion can speed up, change direction or stop.)
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  • What is friction? (think about the activity with the rolling pencil)
    Friction happens when two things rub against each other. Friction makes things slow down. It can also warm them up.
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  • What is a magnet?
    an object that can pull certain types of metal toward itself
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  • What are poles on a magnet?
    the ends of a magnet; north (N) and south (S)
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  • What does it mean for a magnet to "attract"?
    pull closer; opposite poles attract (N and S; S and N)
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  • What does it mean for a magnet to "repel"?
    push away; same poles repel (S and S; N and N)
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  • Does this show magnets attracting or repelling?
    Attracting (opposite poles attract)
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  • Does this show magnets attracting or repelling?
    Repelling (same/like poles repel)
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  • Does this show magnets attracting or repelling?
    Repelling (same/like poles repel)
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  • What kinds of things are magnets attracted to?
    Metals such as iron, nickel, cobalt and steel
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