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Cards In This Set
| Front | Back |
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Which of the following is not a mixture?
A) granite
B) cake
C) air
D) beach sand
E) None. All of the above choices are mixtures
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E
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In an electrically neutral atom, the number of protons in the nucleus is balanced by an
equal number of
A) neutrons.
B) quarks.
C) orbital electrons.
D) all of these
E) none of these
|
C
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The air in this room has
A) mass.
B) weight.
C) energy.
D) all of these
E) none of these
|
D
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Which of the following are electrically neutral?
A) proton
B) neutron
C) electron
D) ion
E) none of these
|
B
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Compared to a bar of pure gold, the density of a pure gold ring is
A) less.
B) the same.
C) slightly more.
D) much more.
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B
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If the volume of an object were to double while its mass stays the same, its density would
A) halve.
B) double.
C) stay the same.
D) become four times as great.
|
A
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Flatten a spherical meatball into a hamburger and you increase its
A) surface area.
B) volume.
C) both of the above
D) none of the above
|
A
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If the mass of an object were to double while its volume remains the same, its density
would
A) halve.
B) double.
C) stay the same.
D) become four times as great
|
B
|
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A dam is thicker at the bottom than at the top partly because
A) water is denser at deeper levels.
B) water pressure is greater with increasing depth.
C) surface tension exists only on the surface of liquids.
D) it looks better.
E) none of these
|
B
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The pressure in a liquid depends on liquid
A) density.
B) depth.
C) both of these
D) neither of these
|
C
|
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The buoyant force on an object is least when the object is
A) partly submerged.
B) submerged near the surface.
C) submerged near the bottom.
D) none of these
|
A
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The density of a submerged submarine is about the same as the density of
A) a crab.
B) iron.
C) a floating submarine.
D) water.
E) none of these
|
D
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A block of Styrofoam floats on water while a same size block of lead lies submerged in
the water. The buoyant force is greatest on the
A) lead.
B) Styrofoam.
C) is the same for both
|
A
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A plasma differs from a gas in that
A) its molecules are farther apart.
B) it is hotter than a gas.
C) it is electrically conducting.
D) its atoms are boosted to higher atomic numbers.
E) all of these
|
C
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A balloon is buoyed up with a force equal to the
A) weight of air it displaces.
B) density of surrounding air.
C) atmospheric pressure.
D) weight of the balloon and contents.
E) all of these
|
A
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