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CH.13

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Liquids, Buoyancy, Archimede's principle, Floating, Pascal's Principle, & Capillarity.
Winston Schultz
Quiz by Winston Schultz, updated more than 1 year ago
Winston Schultz
Created by Winston Schultz about 9 years ago
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Resource summary

Question 1

Question
Which will remain the same for two identical books, one lying flat and the other standing on an end?
Answer
  • weight
  • pressure
  • both of these
  • neither of these

Question 2

Question
When you stand with only one of your feet on a weighing scale, the scale reading is
Answer
  • the same as with both feet.
  • half.
  • doubled.
  • none of the above.

Question 3

Question
Jane lies on a bed of sharp nails without harm because
Answer
  • many of the nails don't make contact with her body.
  • she exercises mind over matter.
  • her weight is distributed over hundreds of nails.
  • none of the above

Question 4

Question
A hospital patient confined to bed will be less likely to develop bed sores with a
Answer
  • water bed.
  • soft mattress.
  • firm mattress.
  • none of these will help.

Question 5

Question
While standing, your blood pressure is normally greatest in your
Answer
  • heart.
  • feet.
  • same in each
  • head.

Question 6

Question
Water pressure on a submerged object is greatest against its
Answer
  • top.
  • sides.
  • bottom.
  • same against all surfaces
  • none of the above

Question 7

Question
A dam is thicker at the bottom than at the top mainly because
Answer
  • surface tension exists only on the surface of liquids.
  • water is denser at deeper levels.
  • it looks better.
  • water pressure increases with depth.
  • none of the above

Question 8

Question
Buoyant force acts upward on a submerged object because
Answer
  • it acts in a direction to oppose gravity.
  • pressure against its bottom is greater than pressure against its top.
  • the weight of fluid displaced reacts with an upward force.
  • none of the above

Question 9

Question
When holes are drilled through the wall of a water tower, water will spurt out with the greatest speed from the hole closest to
Answer
  • the top of the tower.
  • the bottom of the tower.
  • the middle of the tower.
  • all the same

Question 10

Question
The buoyant force on an object is least when the object is
Answer
  • submerged near the surface.
  • submerged near the bottom.
  • partly submerged.
  • none of the above

Question 11

Question
The buoyant force acting on a 10 N boat floating in the ocean is
Answer
  • 10 N
  • more than 10 N
  • depends on density of sea water
  • less than 10 N

Question 12

Question
When a boat sails from fresh water to salt water, the boat will float
Answer
  • at the same water level.
  • lower in the water.
  • higher in the water.

Question 13

Question
What is the weight of water displaced by a 100-ton floating ship?
Answer
  • more than 100 tons
  • 100 cubic meters
  • depends on the ship's shape
  • less than 100 tons
  • 100 tons

Question 14

Question
A scale from which a rock is suspended reads 5 N when the rock is out of water and 3 N when the rock is submerged. Buoyant force on the rock is
Answer
  • 3 N.
  • 5 N.
  • 2 N.
  • 4 N.

Question 15

Question
A scale from which a rock is suspended reads 5 N when the rock is out of water and 3 N when the rock is submerged. The density of the rock is
Answer
  • the same as the density of water.
  • greater than the density of water.
  • smaller than the density of water.
  • can not be determined since there is not enough information.
  • none of the above

Question 16

Question
Pumice is a volcanic rock that floats, which means its density is
Answer
  • equal to the density of water.
  • less than the density of water.
  • more than the density of water.
  • need more information.

Question 17

Question
A fish normally displaces its own
Answer
  • weight of water.
  • volume of water.
  • both of these
  • neither of these

Question 18

Question
Lobsters live on the bottom of the ocean, which means their density is
Answer
  • equal to the density of sea water.
  • less than the density of sea water.
  • greater than the density of sea water.

Question 19

Question
The density of a submerged submarine at rest (in the middle of water not all the way down to the bottom of the ocean) is about the same as the density of
Answer
  • iron.
  • a floating submarine.
  • water.
  • none of the above

Question 20

Question
An egg rests at the bottom of a bowl filled with water. When salt is slowly added to the water the egg rises and floats, from which we conclude
Answer
  • salt water is denser than an egg.
  • salt water is denser than fresh water.
  • both of these
  • neither of these

Question 21

Question
When you float in fresh water, the buoyant force that acts on you is equal to your weight. When you float higher in the denser water of the Dead Sea, the buoyant force that acts on you is
Answer
  • equal to your weight.
  • less than your weight.
  • greater than your weight.

Question 22

Question
A person floats higher in the dense water of the Dead Sea because
Answer
  • of a greater buoyant force.
  • less volume of water is displaced.
  • more volume of water is displaced.

Question 23

Question
When an ice cube in a glass of water melts, the water level
Answer
  • remains the same.
  • rises.
  • falls.

Question 24

Question
A floating ice cube contains small pieces of iron. The water level after melting will
Answer
  • fall.
  • rise.
  • remain unchanged.

Question 25

Question
When you observe the applications of pistons in hydraulic lifting operations you're seeing
Answer
  • Pascal's principle in action.
  • how energy can be increased.
  • both of these.
  • neither of these.

Question 26

Question
To multiply an applied force while using a simple hydraulic lift, your force should be applied to the
Answer
  • large-diameter piston.
  • relative piston sizes don't matter.
  • small-diameter piston.
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