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9C States of Matter

  • Game Code: 2477073
  •  English    19     Public
    9C
  •   Study   Slideshow
  • Which part of the graph shows a change of state?
    a
  •  10
  • Which part of the graph shows melting?
    c
  •  10
  • Which part of the graph shows boiling?
    b
  •  10
  • The temperature at which a substance changes from solid to liquid is known as its ____________.
    melting point
  •  15
  • This state of matter has particles that are close together and touch each other in an irregular pattern. They can move around and slide past one another.
    Liquid
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  • Why does a substance's temperature not change during a phase transition, despite continued heating?
    Because the energy is used to overcome forces of attraction.
    Because the heating process stops temporarily.
    Because the substance is losing energy.
    Because the temperature measurement is incorrect.
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  • How does energy transfer during the cooling of a substance?
    Energy remains constant in the substance.
    Energy is released into the surroundings.
    Energy is absorbed from the surroundings.
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  • The point on a cooling curve where a liquid starts to solidify is called the _______ point.
    freezing
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  • On a heating curve, what does a plateau indicate?
    A constant temperature during a state change.
    The substance is no longer being heated.
    A temperature increase.
    The substance is not changing state.
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  • Which state changes are shown in this heating curve?
    freezing and condensing
    melting and boiling
    melting only
    boiling only
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  • What happens to the particles of a substance when it is heated and reaches its boiling point?
    They move closer together.
    They move further apart and move more quickly.
    They change colour.
    They stop moving.
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  • This state of matter has particles that are close together and touching each other in a regular, repeating pattern. They vibrate about fixed positions but do not move apart.
    Solid
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  • The process of changing from a gas to liquid - the particles lose kinetic energy and come closer together. They eventually clump together in an irregular pattern.
    Condensation
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  • Which theory is this?
    Kinetic particle theory
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  • Describe the forces of attraction between solid particles.
    Particles are held together by very strong attractive forces.
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  • Describe the physical properties of gases(shape, volume, compressibility),
    No fixed shape, no fixed volume, compressible.
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