Chap 7 Kinetic Model
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8 QuestionsShow answers
  • Question 1
    60 seconds
    Q. The kinetic model of matter states that
    answer choices
    atoms and molecules move in continuous and non-random motion
    atoms and molecules move in continuous and random motion
    the kinetic energies of atoms and molecules increase with increasing temperature
    the pressure of atoms and molecules is due to the collision of these particles with the walls of the container they are in
  • Question 2
    60 seconds
    Q. Using a microscope, Peter observes that some pollen grains suspended in water move in an irregular manner. This is due to the
    answer choices
    pollen grains colliding with one another
    pollen grains repelling one another
    random bombardment of pollen grains by water molecules
    random bombardment of water molecules by pollen grains
  • Question 3
    30 seconds
    Q. As the temperature of a gas increases, the gas molecules
    answer choices
    move faster
    expand in volume
    increase in mass
    increase in number
  • Question 4
    30 seconds
    Q. The relative forces of attraction between particles are the strongest in
    answer choices
    gases
    liquids
    solids
    They are equally strong in all states of matter.
  • Question 5
    60 seconds
    Q. Solids have high densities relative to liquids because  
    1  the particles in solids are far apart.
    2  the particles in solids have large masses.
    3  the particles in solids do not move about.
    answer choices
    1 only
    2 only
    2 and 3 only
    none of the above
  • Question 6
    60 seconds
    Q. Which of the following statements about a liquid is correct?
    answer choices
    The particles in a liquid vibrate about fixed positions.
    The particles in a liquid are in continuous, random motion, sliding over one another.
    There are big spaces between particles in a liquid, so a liquid can be compressed.
    The intermolecular forces in a liquid are negligible.
  • Question 7
    60 seconds
    Q. Which of the following statements about a gas is correct?
    answer choices
    Smaller gas particles always move with higher speeds compared to larger gas particles.
    The intermolecular forces between gas particles are negligible.
    At higher temperatures, the volume of gas particles decreases.
    A gas has fixed shape and volume.
  • Question 8
    30 seconds
    Q. If you place a balloon in a freezer what happens to the size (volume) of the balloon?
    answer choices
    Doubles
    increases
    decreases
    stays still
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