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- 1. Multiple ChoiceThe kinetic model of matter states thatatoms and molecules move in continuous and non-random motionatoms and molecules move in continuous and random motionthe kinetic energies of atoms and molecules increase with increasing temperaturethe pressure of atoms and molecules is due to the collision of these particles with the walls of the container they are in
- 2. Multiple ChoiceUsing a microscope, Peter observes that some pollen grains suspended in water move in an irregular manner. This is due to thepollen grains colliding with one anotherpollen grains repelling one anotherrandom bombardment of pollen grains by water moleculesrandom bombardment of water molecules by pollen grains
- 3. Multiple ChoiceAs the temperature of a gas increases, the gas moleculesmove fasterexpand in volumeincrease in massincrease in number
- 4. Multiple ChoiceThe relative forces of attraction between particles are the strongest ingasesliquidssolidsThey are equally strong in all states of matter.
- 5. Multiple ChoiceSolids 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.1 only2 only2 and 3 onlynone of the above - 6. Multiple ChoiceWhich of the following statements about a liquid is correct?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.
- 7. Multiple ChoiceWhich of the following statements about a gas is correct?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.
- 8. Multiple ChoiceIf you place a balloon in a freezer what happens to the size (volume) of the balloon?Doublesincreasesdecreasesstays still
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