Choose the best answer to each question and write the appropriate ...

Quiz/Test review - Solid/Liquid/Gas - Open book
Name: _ Class: Date:
Choose the best answer to each question and write the appropriate letter in the space provided.
1) If an elephant grew to twice its height, the area of its ears would change by a factor of
__________.
A) 2. B) 4. C) 6. D) 8.
2) Crystals are __________.
A) a specific kind of mineral
B) a type of glass
C) a random arrangement of atoms in a substance
D) an orderly arrangement of atoms in a substance
3) A metal block has a density of 5000 g per cubic cm and a volume of 2 cubic cm's. What is
the block's mass?
A) 1000 g B) 2500 g C) 5000 g D) 10000 g
Choose the best answer to each question and write the appropriate letter in the space provided.
4) Which will cool a glass of water faster, ice cubes or the same mass of crushed ice?
A) The cubes
B) The crushed ice
C) Neither -- they will both cool the water at the same rate.
5) Density is defined as __________.
A) mass divided by volume. B) mass times acceleration.
C) length divided by time. D) length divided by volume.
6) What is the density of a rock that has a mass of 500 g and a volume of 200 cubic
centimeters?
A) 10000 g/cubic cm B) 5000 g/cubic cm
C) 700 g/cubic cm D) 2.5 g/cubic cm
7) A 10-kg load stretches an elastic belt 0.02 m. How much will a 15-kg load stretch the belt?
A) 0.06 m B) 0.04 m C) 0.03 m D) 0.02 m
8) What is the weight density of a tub of water that weighs 19 600 N and occupies a volume
of 2 cubic meters?
A) 38 200 N/cubic m B) 19 600 N/cubic m
C) 9800 N/cubic m D) 4900 N/cubic m
© Prentice Hall, Inc. Page 1

Choose the best answer to each question and write the appropriate letter in the space provided.
9) Which geometrical shape has the least surface area for a given volume?
A) cube B) pyramid C) cylinder D) sphere
10) If the volume of an object were to double while its mass stayed the same, its density
would __________.
A) halve B) double C) stay the same
11) Which has the greater density, 5 kg of silver or 10 kg of steel?
A) The silver
B) The steel
C) They both have the same density
Choose the best answer to each question and write the appropriate letter in the space provided.
12) The reason falling heavy objects hit the ground faster than falling light objects is that
heavy objects (remember, Gravity pulls ALL objects at 9.8 m/s2)__________.
A) accelerate faster than light objects.
B) have more air resistance.
C) have a smaller ratio of surface area to weight.
D) all of the above
13) The reason an iron ship doesn't sink is that __________.
A) iron is less dense than water
B) the iron displaces more water than it would if it were in a solid block
C) air inside decreases it's weight
D) Nonsense -- an iron ship will always sink
14) There is a legend of a Dutch boy who bravely held back the Atlantic Ocean by plugging a
leak near the top of a dike with his finger until help arrived. Which of the following is
most likely?
A) This is impossible because of the large size of the Atlantic Ocean.
B) The force on his finger would have been huge, but the pressure very small.
C) The force on his finger would have been less than 1 N.
D) Both the force and pressure on his finger would have been very large.
15) Suppose a stone weighs 3 N in the air, but in water it weighs only 2 N. What is the
buoyant force acting on the stone?
A) 5 N B) 4 N C) 3 N D) 2 N E) 1 N
© Prentice Hall, Inc. Page 2

Choose the best answer to each question and write the appropriate letter in the space provided.
16) If an object has a density equal to the density of water, it will __________.
A) float B) sink C) neither float nor sink
17) If the part of an iceberg that extends above the water were removed, the __________.
A) iceberg would sink.
B) iceberg would rise higher in the water.
C) density of the iceberg would change.
D) pressure on the bottom of the iceberg would increase.
18) When first put in water, a plastic toy boat will sink until __________.
A) it displaces a volume of water equal to its own volume
B) it displaces a weight of water equal to its own weight
C) the water density equals the density of the boat
D) the buoyant force equals the volume of the boat
19) Pressure in a liquid depends on the __________.
A) density of the liquid.
B) volume of the liquid.
C) mass of the liquid.
D) depth of the measuring point.
E) both A and D
20) If an object has a density greater than the density of water, it will __________.
A) float B) sink C) neither float nor sink
21) When a boat sails from fresh water to salt water, the boat will float __________.
A) lower in the salt water B) higher in the salt water C) at the same level
22) When you float in salt water compared to floating in fresh water, the buoyant force that
supports you is __________.
A) greater B) less C) the same
23) An egg is placed at the bottom of a bowl filled with water. Salt is slowly added to the
water until the egg rises and floats. From this experiment, one can conclude that
__________.
A) calcium in the eggshell is repelled by sodium chloride.
B) the density of salt water exceeds the density of egg.
C) buoyant forces do not always act upward.
D) salt sinks to the bottom.
© Prentice Hall, Inc. Page 3

24) Floating Freda, who can just barely float in fresh water, has a mass of 100 kg. Her volume
is therefore about __________.
A) 50 liters. B) 100 liters.
C) 220 liters. D) none of the above
25) An industrial container holds 200 N of water. The area of the inside bottom of the
container is 2 square meters. What pressure does the water exert on the bottom of the
container?
A) 100 N per square meter B) 200 N per square meter
C) 400 N per square meter D) 800 N per square meter
Choose the best answer to each question and write the appropriate letter in the space provided.
26) The pressure at the bottom of a jug filled with water does NOT depend on the
__________.
A) acceleration due to gravity B) density of water
C) depth of the liquid D) surface area of the water
27) Where is the pressure greater, one meter beneath the surface of Lake Michigan or one
meter beneath the surface of a swimming pond?
A) In Lake Michigan B) In the pond C) The same in both places
28) When an ice cube in a glass of water melts, the water level __________.
A) rises B) falls C) remains the same
29) Two equal-sized buckets are filled to the top with water. One of the buckets has a piece
of wood floating in it, making its total weight __________.
A) less than the weight of the other bucket
B) equal to the weight of the other bucket
C) more than the weight of the other bucket
30) If you are standing on the moon and release a balloon filled with helium gas, the balloon
will __________.
A) rise B) fall C) neither rise nor fall
31) The reason water can be pumped out of a well using an old-fashioned farm-type pump is
that the __________.
A) water level is very close to the pump.
B) pump scoops up the water and lifts it to the top.
C) pump sucks the water up from the well.
D) water is pushed to the surface by the atmosphere.
© Prentice Hall, Inc. Page 4

32) An umbrella tends to move upward on a windy day because __________.
A) air gets trapped under the umbrella and pushes it up.
B) buoyancy increases with increasing wind speed.
C) the wind pushes it up.
D) a low-pressure area is created on top of the umbrella.
33) A car with closed windows makes a left-hand turn. A helium-filled balloon in the car will
__________.
A) move to the right B) move to the left
C) move to the front D) move to the back
Choose the best answer to each question and write the appropriate letter in the space provided.
34) A helium-filled balloon released into the atmosphere will rise until __________.
A) the pressure inside the balloon equals atmospheric pressure.
B) atmospheric pressure on the top and bottom of the balloon are equal.
C) the balloon's density equals atmospheric density.
D) the balloon can no longer expand.
35) In the top of a barometer there is a space that is filled with __________.
A) air. B) helium.
C) water vapor. D) dense mercury vapor.
36) Consider an air-filled balloon, weighted with a stone, that just barely floats in water.
When the balloon is pushed beneath the surface, say about a meter deep, and then
released, it will __________.
A) float back to the surface B) stay where it is C) sink
37) If you squeeze a balloon to one half its original size, the pressure inside __________.
A) increases by a factor of 4 B) increases by a factor of 2
C) stays the same D) decreases by a factor of 2
38) An aneroid barometer works by using __________.
A) a long column of mercury.
B) a long column of water.
C) an altimeter.
D) a small metal box with a partial vacuum in it.
39) If you blow across the top of a piece of paper, the paper will __________.
A) flatten B) flap wildly C) lift D) do nothing
© Prentice Hall, Inc. Page 5

Choose the best answer to each question and write the appropriate letter in the space provided.
40) As a whale swims deeper into the ocean, increasing water pressure squeezes its volume,
making it smaller. As the whale swims deeper and deeper, the buoyant force on it
__________.
A) decreases B) increases C) remains unchanged
41) As a high-altitude balloon sinks lower and lower into the atmosphere, its __________.
A) volume decreases. B) density decreases.
C) weight decreases. D) mass decreases.
42) Which has more weight, a balloon filled with helium or the same size balloon filled with
air?
A) The helium balloon
B) The air balloon
C) Neither -- they both have the same weight.
43) As a woman holding her breath swims deeper and deeper beneath the water's surface, her
density __________.
A) increases B) decreases C) remains the same
44) The lift that supports an airplane wing is a consequence of __________.
A) Archimede's principle. B) Bernoulli's principle.
C) Pascal's principle. D) Lake Dallas' Principal
© Prentice Hall, Inc. Page 6