Winston Schultz
Quiz von , erstellt am more than 1 year ago

Liquids, Buoyancy, Archimede's principle, Floating, Pascal's Principle, & Capillarity.

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Winston Schultz
Erstellt von Winston Schultz vor mehr als 8 Jahre
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CH.13

Frage 1 von 26

1

Which will remain the same for two identical books, one lying flat and the other standing on an end?

Wähle eine der folgenden:

  • weight

  • pressure

  • both of these

  • neither of these

Erklärung

Frage 2 von 26

1

When you stand with only one of your feet on a weighing scale, the scale reading is

Wähle eine der folgenden:

  • the same as with both feet.

  • half.

  • doubled.

  • none of the above.

Erklärung

Frage 3 von 26

1

Jane lies on a bed of sharp nails without harm because

Wähle eine der folgenden:

  • 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

Erklärung

Frage 4 von 26

1

A hospital patient confined to bed will be less likely to develop bed sores with a

Wähle eine der folgenden:

  • water bed.

  • soft mattress.

  • firm mattress.

  • none of these will help.

Erklärung

Frage 5 von 26

1

While standing, your blood pressure is normally greatest in your

Wähle eine der folgenden:

  • heart.

  • feet.

  • same in each

  • head.

Erklärung

Frage 6 von 26

1

Water pressure on a submerged object is greatest against its

Wähle eine der folgenden:

  • top.

  • sides.

  • bottom.

  • same against all surfaces

  • none of the above

Erklärung

Frage 7 von 26

1

A dam is thicker at the bottom than at the top mainly because

Wähle eine der folgenden:

  • 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

Erklärung

Frage 8 von 26

1

Buoyant force acts upward on a submerged object because

Wähle eine der folgenden:

  • 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

Erklärung

Frage 9 von 26

1

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

Wähle eine der folgenden:

  • the top of the tower.

  • the bottom of the tower.

  • the middle of the tower.

  • all the same

Erklärung

Frage 10 von 26

1

The buoyant force on an object is least when the object is

Wähle eine der folgenden:

  • submerged near the surface.

  • submerged near the bottom.

  • partly submerged.

  • none of the above

Erklärung

Frage 11 von 26

1

The buoyant force acting on a 10 N boat floating in the ocean is

Wähle eine der folgenden:

  • 10 N

  • more than 10 N

  • depends on density of sea water

  • less than 10 N

Erklärung

Frage 12 von 26

1

When a boat sails from fresh water to salt water, the boat will float

Wähle eine der folgenden:

  • at the same water level.

  • lower in the water.

  • higher in the water.

Erklärung

Frage 13 von 26

1

What is the weight of water displaced by a 100-ton floating ship?

Wähle eine der folgenden:

  • more than 100 tons

  • 100 cubic meters

  • depends on the ship's shape

  • less than 100 tons

  • 100 tons

Erklärung

Frage 14 von 26

1

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

Wähle eine der folgenden:

  • 3 N.

  • 5 N.

  • 2 N.

  • 4 N.

Erklärung

Frage 15 von 26

1

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

Wähle eine der folgenden:

  • 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

Erklärung

Frage 16 von 26

1

Pumice is a volcanic rock that floats, which means its density is

Wähle eine der folgenden:

  • equal to the density of water.

  • less than the density of water.

  • more than the density of water.

  • need more information.

Erklärung

Frage 17 von 26

1

A fish normally displaces its own

Wähle eine der folgenden:

  • weight of water.

  • volume of water.

  • both of these

  • neither of these

Erklärung

Frage 18 von 26

1

Lobsters live on the bottom of the ocean, which means their density is

Wähle eine der folgenden:

  • equal to the density of sea water.

  • less than the density of sea water.

  • greater than the density of sea water.

Erklärung

Frage 19 von 26

1

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

Wähle eine der folgenden:

  • iron.

  • a floating submarine.

  • water.

  • none of the above

Erklärung

Frage 20 von 26

1

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

Wähle eine der folgenden:

  • salt water is denser than an egg.

  • salt water is denser than fresh water.

  • both of these

  • neither of these

Erklärung

Frage 21 von 26

1

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

Wähle eine der folgenden:

  • equal to your weight.

  • less than your weight.

  • greater than your weight.

Erklärung

Frage 22 von 26

1

A person floats higher in the dense water of the Dead Sea because

Wähle eine der folgenden:

  • of a greater buoyant force.

  • less volume of water is displaced.

  • more volume of water is displaced.

Erklärung

Frage 23 von 26

1

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

Wähle eine der folgenden:

  • remains the same.

  • rises.

  • falls.

Erklärung

Frage 24 von 26

1

A floating ice cube contains small pieces of iron. The water level after melting will

Wähle eine der folgenden:

  • fall.

  • rise.

  • remain unchanged.

Erklärung

Frage 25 von 26

1

When you observe the applications of pistons in hydraulic lifting operations you're seeing

Wähle eine der folgenden:

  • Pascal's principle in action.

  • how energy can be increased.

  • both of these.

  • neither of these.

Erklärung

Frage 26 von 26

1

To multiply an applied force while using a simple hydraulic lift, your force should be applied to the

Wähle eine der folgenden:

  • large-diameter piston.

  • relative piston sizes don't matter.

  • small-diameter piston.

Erklärung

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