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Forces and magnets

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  • What surface has more friction? A surface with water or a surface with sand?
    A surface with sand.
  • Magnets can push and pull. True or false?
    True!
  • Friction happens when one object moves on another object. True or false?
    True!
  • We don't use a lot of magnets in our lives.
    False!
  • Friction happens in the same direction of the movement. True or false?
    False.
  • Down is a different in different places of the Earth.
    True!
  • Why don't we fall off the Earth? Because of ___________.
    Because of gravity.
  • A forcemeter is a equipment to measure the gravity.
    False!
  • Name 1 magnetic object.
    Ex: Paper clip, fork, knife, refrigerator...
  • Name 5 non-magnetic objects.
    Ex: Any object made of plastic, rubber, cotton...
  • Gravity makes objects have weight.
    True!
  • Opposite poles will always attract each other. True or false?
    True!
  • Give 1 example of friction in our lives.
    Ex: Walking, rubbing hands, ball rolling...
  • Only north poles attract magnetic materials. True or false?
    False!
  • Gravity is the force that pulls objects towards the center of the Earth. True or false?
    True!
  • What object doesn't use magnets? Credit card, headphone, car or aluminum soda can?
    Aluminum soda can.
  • All magnets have a north pole and a south pole. True or false?
    True!
  • What is the color of the south pole?
    Blue.
  • In which direction do things fall? Up, down or to the sides?
    Down.
  • What type of surface has more friction? Rough surfaces or smooth surfaces?
    Rough surfaces.
  • We make more force when the object is heavier. True or false?
    True!
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