Winston Schultz
Quiz by , created more than 1 year ago

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

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Winston Schultz
Created by Winston Schultz about 9 years ago
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Question 1 of 26

1

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

Select one of the following:

  • weight

  • pressure

  • both of these

  • neither of these

Explanation

Question 2 of 26

1

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

Select one of the following:

  • the same as with both feet.

  • half.

  • doubled.

  • none of the above.

Explanation

Question 3 of 26

1

Jane lies on a bed of sharp nails without harm because

Select one of the following:

  • 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

Explanation

Question 4 of 26

1

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

Select one of the following:

  • water bed.

  • soft mattress.

  • firm mattress.

  • none of these will help.

Explanation

Question 5 of 26

1

While standing, your blood pressure is normally greatest in your

Select one of the following:

  • heart.

  • feet.

  • same in each

  • head.

Explanation

Question 6 of 26

1

Water pressure on a submerged object is greatest against its

Select one of the following:

  • top.

  • sides.

  • bottom.

  • same against all surfaces

  • none of the above

Explanation

Question 7 of 26

1

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

Select one of the following:

  • 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

Explanation

Question 8 of 26

1

Buoyant force acts upward on a submerged object because

Select one of the following:

  • 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

Explanation

Question 9 of 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

Select one of the following:

  • the top of the tower.

  • the bottom of the tower.

  • the middle of the tower.

  • all the same

Explanation

Question 10 of 26

1

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

Select one of the following:

  • submerged near the surface.

  • submerged near the bottom.

  • partly submerged.

  • none of the above

Explanation

Question 11 of 26

1

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

Select one of the following:

  • 10 N

  • more than 10 N

  • depends on density of sea water

  • less than 10 N

Explanation

Question 12 of 26

1

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

Select one of the following:

  • at the same water level.

  • lower in the water.

  • higher in the water.

Explanation

Question 13 of 26

1

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

Select one of the following:

  • more than 100 tons

  • 100 cubic meters

  • depends on the ship's shape

  • less than 100 tons

  • 100 tons

Explanation

Question 14 of 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

Select one of the following:

  • 3 N.

  • 5 N.

  • 2 N.

  • 4 N.

Explanation

Question 15 of 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

Select one of the following:

  • 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

Explanation

Question 16 of 26

1

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

Select one of the following:

  • equal to the density of water.

  • less than the density of water.

  • more than the density of water.

  • need more information.

Explanation

Question 17 of 26

1

A fish normally displaces its own

Select one of the following:

  • weight of water.

  • volume of water.

  • both of these

  • neither of these

Explanation

Question 18 of 26

1

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

Select one of the following:

  • equal to the density of sea water.

  • less than the density of sea water.

  • greater than the density of sea water.

Explanation

Question 19 of 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

Select one of the following:

  • iron.

  • a floating submarine.

  • water.

  • none of the above

Explanation

Question 20 of 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

Select one of the following:

  • salt water is denser than an egg.

  • salt water is denser than fresh water.

  • both of these

  • neither of these

Explanation

Question 21 of 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

Select one of the following:

  • equal to your weight.

  • less than your weight.

  • greater than your weight.

Explanation

Question 22 of 26

1

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

Select one of the following:

  • of a greater buoyant force.

  • less volume of water is displaced.

  • more volume of water is displaced.

Explanation

Question 23 of 26

1

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

Select one of the following:

  • remains the same.

  • rises.

  • falls.

Explanation

Question 24 of 26

1

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

Select one of the following:

  • fall.

  • rise.

  • remain unchanged.

Explanation

Question 25 of 26

1

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

Select one of the following:

  • Pascal's principle in action.

  • how energy can be increased.

  • both of these.

  • neither of these.

Explanation

Question 26 of 26

1

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

Select one of the following:

  • large-diameter piston.

  • relative piston sizes don't matter.

  • small-diameter piston.

Explanation

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