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Review Stage 8

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  • When a north pole is close to a north pole, the magnet will be……………….
    Repel each other
  • Mention types of magnetic that you know.
    Bar, Horseshoes, Needle, Cylindrical, Oval Shape, Ring
  • The name of process changing of matter when solid become liquid……..
    Melting
  • What is the name of the process in this picture? label the pole in a bar steel that already magnetized.
    on the left North, on he right South
  • The name of process changing of matter when gas become liquid……..
    Condensation
  • The particle in gas and liquid can ………………………, it’s the reason why the shape and the volume in gas and liquid can changes.
    Move around
  • Draw the direction of magnetic field
    from north to south
  • The particles in solid only can……………, it’s the reason why the shape and the volume in solid always same.
    Vibrate
  • The state of matter that can be compressed……
    Gas
  • The name of process changing of matter when gas become solid……..
    Deposition
  • How to make more strong electromagnet
    add the number of turns wire, add more batteries
  • Where the magnetic field strongest in a magnet? Explain the reason
    at the corner, because the line of magnetic field are close each other at the pole/corner
  • The name of process changing of matter when liquid become solid……..
    Freezing
  • What is the tools that you need to make an electromagnet, can you mention the example of object that use the theory of electromagnet
    nail, copper coil, battery. The example are motor, electric bell, trafo
  • Explain how steel and aluminium cans can be separated using a magnet.
    mix aluminium and steel cans on conveyor belt, steel cans will be attracted by the electromagnet, but the aluminium
  • Mention 3 objects around you that use magnet.
    Refrigirator, speaker, tv
  • The name of process changing of matter when solid become gas……..
    Sublimation
  • The name of process changing of matter when liquid become gas……..
    Evaporation
  • When a north pole is close to a south pole, the magnet will be………………..
    attract each other
  • Explain about the right hand's rule
    the thumb finger represents the north pole, the four fingers are represent the direction of the current.
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