Question 1

When holes are drilled through the wall of a water tower ,water will spurt out the greatest horizontal distance from the hole closest to

Accepted Answer

A)  the bottom of the tower.
B)  the middle of the tower.
C)  the top of the tower.
D)  The horizontal distance will be the same for all holes.E) A) and B)
F) A) and C)

Question 2

One liter of water has a mass of

Accepted Answer

A)  1 kilogram.
B)  14.7 grams.
C)  500 grams.
D)  none of the above choicesE) B) and C)
F) A) and D)

Question 3

Three icebergs are each floating in bathtubs filled to the brim with water.Iceberg A has large air bubbles in it.Iceberg B has unfrozen water in it.Iceberg C has an iron railroad spike in it.When the ice melts,what happens?

Accepted Answer

A)  The water level in C will decrease while the other two water levels will remain the same.
B)  Only the water in C will spill over.
C)  The water level in A will stay the same,while the other tubs will spill over.
D)  All the tubs spill over.
E)  All stay exactly the same.F) A) and B)
G) B) and C)

Question 4

Surface tension of liquids

Accepted Answer

A)  increases when wetting agents are added.
B)  decreases as the liquid temperature increases.
C)  is about the same for all liquids.
D)  results from a thin molecular membrane beneath the liquid surface.
E)  is the reason a steel ship will float.F) B) and E)
G) A) and E)

Question 5

A very light-weight horizontal loop of wire is suspended from a fine spring,lowered into water,and then raised to the surface.Any further attempt to raise it causes the spring to

Accepted Answer

A)  stretch.
B)  contract.
C)  stay the same.D) A) and B)
E) A) and C) A

Question 6

A floating ice cube contains small pieces of iron.During melting the water level will

Accepted Answer

A)  rise.
B)  fall.
C)  remain unchanged.D) All of the above
E) B) and C)

Question 7

A heavy glass ball is placed in a pie pan that floats in a bucket.The water level at the side of the bucket is marked.Then the glass ball is removed and allowed to sink in the bucket.The water line at the side of the bucket is now

Accepted Answer

A)  lower.
B)  the same.
C)  higher.D) A) and B)
E) A) and C)

Question 8

Lobsters live on the bottom of the ocean.The density of a lobster is

Accepted Answer

A)  greater than the density of sea water.
B)  equal to the density of sea water.
C)  less than the density of sea water.D) A) and C)
E) A) and B)

Question 9

In a hydraulic-press operation,it is impossible for the

Accepted Answer

A)  output displacement to exceed the input displacement.
B)  force output to exceed the force input.
C)  energy output to exceed the energy input.
D)  output piston's speed to exceed the input piston's speed.
E)  none of theseF) A) and D)
G) All of the above

Question 10

When an ice cube in a glass of water melts,the water level

Accepted Answer

A)  rises.
B)  falls.
C)  remains the same.D) A) and B)
E) A) and C)

Question 11

The mass of a cubic meter of water is

Accepted Answer

A)  1 kg.
B)  10 kg.
C)  100 kg.
D)  1000 kg.
E)  9800 N.F) A) and B)
G) A) and E)

Question 12

The volume of water displaced by a floating 20-ton boat

Accepted Answer

A)  is 20 cubic meters.
B)  is the volume of 20 tons of water.
C)  is the volume of the boat.
D)  depends on the shape of the ship's hull.
E)  none of theseF) B) and E)
G) A) and D)

Question 13

Buoyant force is greatest on a submerged

Accepted Answer

A)  10-newton block of lead.
B)  10-newton block of aluminum.
C)  is the same on eachD) All of the above
E) A) and C) B

Question 14

A fish normally displaces its own

Accepted Answer

A)  volume of water.
B)  weight of water.
C)  both of these
D)  neither of theseE) B) and D)
F) None of the above

Question 15

If the part of an iceberg that extends above the water were suddenly removed,the

Accepted Answer

A)  iceberg would sink.
B)  buoyant force on the iceberg would decrease.
C)  density of the iceberg would change.
D)  pressure on the bottom of the iceberg would increase.
E)  none of theseF) B) and D)
G) C) and D)

Question 16

What is the buoyant force acting on a 10-ton ship floating in the ocean?

Accepted Answer

A)  less than 10 tons
B)  10 tons
C)  more than 10 tons
D)  depends on density of sea waterE) B) and C)
F) A) and D)

Question 17

Use the following figure to answer the question: 
-A dam is thicker at the bottom than at the top partly because

Accepted Answer

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 theseF) None of the above
G) B) and C)

Question 18

Water pressure is greatest against the

Accepted Answer

A)  top of a submerged object.
B)  bottom of a submerged object.
C)  sides of a submerged object.
D)  is the same against all surfaces
E)  none of theseF) A) and D)
G) B) and D)

Question 19

Buoyant force is greatest on a submerged

Accepted Answer

A)  1-kg block of lead.
B)  1-kg block of aluminum.
C)  is the same on eachD) B) and C)
E) None of the above B

Question 20

The pressure at the bottom of a jug filled with water does NOT depend on

Accepted Answer

A)  the acceleration due to gravity.
B)  water density.
C)  the height of the liquid.
D)  surface area of the water.
E)  none of theseF) A) and E)
G) A) and D)

Exam 13: Liquids

When holes are drilled through the wall of a water tower ,water will spurt out the greatest horizontal distance from the hole closest to

Correct AnswerverifiedShow Answer

One liter of water has a mass of

Correct AnswerverifiedShow Answer

Three icebergs are each floating in bathtubs filled to the brim with water.Iceberg A has large air bubbles in it.Iceberg B has unfrozen water in it.Iceberg C has an iron railroad spike in it.When the ice melts,what happens?

Correct AnswerverifiedShow Answer

Surface tension of liquids

Correct AnswerverifiedShow Answer

A very light-weight horizontal loop of wire is suspended from a fine spring,lowered into water,and then raised to the surface.Any further attempt to raise it causes the spring to

Correct AnswerverifiedA

A floating ice cube contains small pieces of iron.During melting the water level will

Correct AnswerverifiedShow Answer

A heavy glass ball is placed in a pie pan that floats in a bucket.The water level at the side of the bucket is marked.Then the glass ball is removed and allowed to sink in the bucket.The water line at the side of the bucket is now

Correct AnswerverifiedShow Answer

Lobsters live on the bottom of the ocean.The density of a lobster is

Correct AnswerverifiedShow Answer

In a hydraulic-press operation,it is impossible for the

Correct AnswerverifiedShow Answer

When an ice cube in a glass of water melts,the water level

Correct AnswerverifiedShow Answer

The mass of a cubic meter of water is

Correct AnswerverifiedShow Answer

The volume of water displaced by a floating 20-ton boat

Correct AnswerverifiedShow Answer

Buoyant force is greatest on a submerged

Correct AnswerverifiedB

A fish normally displaces its own

Correct AnswerverifiedShow Answer

If the part of an iceberg that extends above the water were suddenly removed,the

Correct AnswerverifiedShow Answer

What is the buoyant force acting on a 10-ton ship floating in the ocean?

Correct AnswerverifiedShow Answer

Use the following figure to answer the question: -A dam is thicker at the bottom than at the top partly because

Correct AnswerverifiedShow Answer

Water pressure is greatest against the

Correct AnswerverifiedShow Answer

Buoyant force is greatest on a submerged

Correct AnswerverifiedB

The pressure at the bottom of a jug filled with water does NOT depend on

Correct AnswerverifiedShow Answer

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A

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B

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B

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