Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Oxygen is considered a
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2.
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Molecules in a solid move
a. | much faster than in a gas | c. | about the same as
gas | b. | much faster than in a liquid | d. | much slower than a
liquid |
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3.
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Molecules that are the furthest apart form a
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4.
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When ice melts into water it changes from one state to another
a. | solid to liquid | c. | liquid to gas | b. | liquid to solid | d. | solid to gas |
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5.
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If you pour water into a container of oil and shake it up you will have
a(n)
a. | element | c. | mixture | b. | compound |
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6.
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Pure silver is not chemically combined with other substances and is an example
of a(n)
a. | element | c. | mixture | b. | compound |
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7.
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 The
handles on this simple machine are used as a a. | lever | c. | gear | b. | pulley | d. | loader |
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8.
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 Which simple machine would
be best/easiest to use to get the hay to the storage loft at the top of the barn? a. | wheel | c. | pulley | b. | lever | d. | incline |
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9.
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Which idea below best explains why we slip on ice?
a. | water is slippery | c. | there is little friction | b. | our speed is too
great | d. | ice is
cold |
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10.
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In outer space, objects can travel “forever” with just one
push. The reason for this is:
a. | space is empty of roads/paths | c. | the force of
“pushes” are greater in outer space | b. | there is no air to cause
friction | d. | energy from the
sun is not filtered by the atmosphere |
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11.
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What can you logically predict about the speed of a car that has run out of gas
as it travels down a road ?
a. | It will slow down due to the friction of the wind | c. | it will go backwards as friction
decreases | b. | it will go faster as the wind reduces friction | d. | it will stop by pushing equally against the
force of the wind |
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12.
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 In this picture, the physical properties of the ice are
changing to _____. a. | liquid | c. | solid | b. | steam | d. | opaque |
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13.
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In which item below are the molecules the furthest apart?
a. | steel | c. | liquid | b. | soda | d. | gas |
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14.
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1)  2)  3)  4)  In which substance above are the molecules moving the fastest?
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15.
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In which item below would you find the fastest moving molecules? 1)
 2)  3)  4) 
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16.
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Which item below has a permanent shape? 1)  2)  3)  4) 
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