Question 1

An ionized gas is called a plasma.

Accepted Answer

A) True 
 B)False

Question 2

Two pistons push down on the fluid filling two cylinders connected by a narrow hose,as shown in the figure.The area AS1U1B11S1U1B0 is 1 square inch,and the area AS1U1B12S1U1B0 is 10 square inches.A force of 4 pounds is exerted downward on piston 1,as shown.  
-The pressure on A1 in psi is

Accepted Answer

A) 0.25. 
B) 0.4. 
C) 4. 
D) 10. 
E) 40. 
A) 0.25. 
B) 0.4. 
C) 4. 
D) 10. 
E) 40.

Question 3

The gauge pressure of the water in a swimming pool at 10 ft is __________ the gauge pressure of the water at 5 ft.

Accepted Answer

The answer of The gauge pressure of the water in...

Question 4

As a pressurized aircraft gains altitude,the force acting on the boarding door due to the difference between the outside air pressure and the pressure inside the aircraft _____________ with height

Accepted Answer

The answer of As a pressurized aircraft gains altitude,the force...

Question 5

The ratio of the density of a material to the density of water is

Accepted Answer

A) the mass density. 
B) the weight density. 
C) the specific gravity. 
D) the buoyant force. 
E) none of the above. 
A) the mass density. 
B) the weight density. 
C) the specific gravity. 
D) the buoyant force. 
E) none of the above.

Question 6

A rectangular stack of lead bricks measures 2 m by 3 m by 4 m.The mass density of lead is 11,340 kilograms per cubic meter.What is the total mass of the stack of lead?

Accepted Answer

The answer of A rectangular stack of lead bricks measures...

Question 7

The absolute pressure depends on

Accepted Answer

A) the weight of the fluid. 
B) the atmospheric pressure. 
C) the cross-sectional area. 
D) the gauge pressure. 
A) the weight of the fluid. 
B) the atmospheric pressure. 
C) the cross-sectional area. 
D) the gauge pressure.

Question 8

When a 4-cubic-ft block of wood floats in a fluid whose weight density is 60 pounds per cubic foot,3/4 of the block's volume is submerged.The buoyant force on the block is 60 pounds.

Accepted Answer

A) True 
 B)False

Question 9

The gauge pressure of the water in a swimming pool at 10 ft is ____________ the gauge pressure of the water at 5 ft.

Accepted Answer

A) 1/4 
B) 1/2 
C) equal to 
D) 2 times 
E) 4 times 
A) 1/4 
B) 1/2 
C) equal to 
D) 2 times 
E) 4 times

Question 10

Water is flowing through a pipe whose cross-sectional area at point A is larger than the cross-sectional area at point B.The reading on a pressure gauge connected to the pipe at point A will be lower than the reading on a pressure gauge connected to the pipe at point B.

Accepted Answer

A) True 
 B)False

Question 11

A submarine dives to a depth of 50 meters in the ocean.
(a)What is the gauge pressure at this depth?
(b)What is the force acting on a hatch that has an area of 2.5 square meters?

Accepted Answer

(a)490,000

Question 12

The nucleus of an atom contains

Accepted Answer

A) protons. 
B) neutrons. 
C) electrons. 
D) all of the above. 
A) protons. 
B) neutrons. 
C) electrons. 
D) all of the above.

Question 13

The ratio of the density of a material to the density of water is the __________.

Accepted Answer

The answer of The ratio of the density of a...

Question 14

A person weighing 180 pounds stands on snowshoes.If the total area of the 2 snowshoes is 900 square inches,what is the pressure on the snow?

Accepted Answer

The answer of A person weighing 180 pounds stands on...

Question 15

The brakes in a car work because of Pascal's principle.

Accepted Answer

A) True 
 B)False

Question 16

The upward force exerted by a fluid on an object immersed in it is called the buoyant pressure.

Accepted Answer

A) True 
 B)False

Question 17

The central core inside an atom is

Accepted Answer

A) the electron. 
B) the proton. 
C) the neutron. 
D) the nucleus. 
E) none of the above. 
A) the electron. 
B) the proton. 
C) the neutron. 
D) the nucleus. 
E) none of the above.

Question 18

The molecule is the basic unit of all

Accepted Answer

A) elements. 
B) compounds. 
C) mixtures. 
D) solutions. 
A) elements. 
B) compounds. 
C) mixtures. 
D) solutions.

Question 19

You press a stick that has a varying cross-sectional area horizontally between the palms of your hands. The area of the stick pushing against your left palm is twice the area of the stick pushing against your right palm.
-The pressure on your left palm is ____________ the pressure on your right palm.

Accepted Answer

A) 1/4 
B) 1/2 
C) equal to 
D) 2 times 
E) 4 times 
A) 1/4 
B) 1/2 
C) equal to 
D) 2 times 
E) 4 times

Question 20

Two inflated balloons are of identical size and shape,but one is filled with hydrogen,the other helium.Which has the larger buoyant force on it?

Accepted Answer

A) neither-the buoyant forces must be equal 
B) the helium balloon 
C) the hydrogen balloon 
D) It can't be determined. 
A) neither-the buoyant forces must be equal 
B) the helium balloon 
C) the hydrogen balloon 
D) It can't be determined.

An ionized gas is called a plasma.

Two pistons push down on the fluid filling two cylinders connected by a narrow hose,as shown in the figure.The area A₁ is 1 square inch,and the area A₂ is 10 square inches.A force of 4 pounds is exerted downward on piston 1,as shown. -The pressure on A₁ in psi is

The gauge pressure of the water in a swimming pool at 10 ft is __________ the gauge pressure of the water at 5 ft.

As a pressurized aircraft gains altitude,the force acting on the boarding door due to the difference between the outside air pressure and the pressure inside the aircraft _____________ with height

The ratio of the density of a material to the density of water is

A rectangular stack of lead bricks measures 2 m by 3 m by 4 m.The mass density of lead is 11,340 kilograms per cubic meter.What is the total mass of the stack of lead?

The absolute pressure depends on

When a 4-cubic-ft block of wood floats in a fluid whose weight density is 60 pounds per cubic foot,3/4 of the block's volume is submerged.The buoyant force on the block is 60 pounds.

The gauge pressure of the water in a swimming pool at 10 ft is ____________ the gauge pressure of the water at 5 ft.

Water is flowing through a pipe whose cross-sectional area at point A is larger than the cross-sectional area at point B.The reading on a pressure gauge connected to the pipe at point A will be lower than the reading on a pressure gauge connected to the pipe at point B.

A submarine dives to a depth of 50 meters in the ocean. (a)What is the gauge pressure at this depth? (b)What is the force acting on a hatch that has an area of 2.5 square meters?

The nucleus of an atom contains

The ratio of the density of a material to the density of water is the __________.

A person weighing 180 pounds stands on snowshoes.If the total area of the 2 snowshoes is 900 square inches,what is the pressure on the snow?

The brakes in a car work because of Pascal's principle.

The upward force exerted by a fluid on an object immersed in it is called the buoyant pressure.

The central core inside an atom is

The molecule is the basic unit of all

Two inflated balloons are of identical size and shape,but one is filled with hydrogen,the other helium.Which has the larger buoyant force on it?

The Study of Motion

Newtons Laws

Energy and Conservation Laws

Temperature and Heat

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Exam 4: Physics of Matter

An ionized gas is called a plasma.

Two pistons push down on the fluid filling two cylinders connected by a narrow hose,as shown in the figure.The area A1 is 1 square inch,and the area A2 is 10 square inches.A force of 4 pounds is exerted downward on piston 1,as shown. -The pressure on A1 in psi is

The gauge pressure of the water in a swimming pool at 10 ft is __________ the gauge pressure of the water at 5 ft.

As a pressurized aircraft gains altitude,the force acting on the boarding door due to the difference between the outside air pressure and the pressure inside the aircraft _____________ with height

The ratio of the density of a material to the density of water is

A rectangular stack of lead bricks measures 2 m by 3 m by 4 m.The mass density of lead is 11,340 kilograms per cubic meter.What is the total mass of the stack of lead?

The absolute pressure depends on

When a 4-cubic-ft block of wood floats in a fluid whose weight density is 60 pounds per cubic foot,3/4 of the block's volume is submerged.The buoyant force on the block is 60 pounds.

The gauge pressure of the water in a swimming pool at 10 ft is ____________ the gauge pressure of the water at 5 ft.

Water is flowing through a pipe whose cross-sectional area at point A is larger than the cross-sectional area at point B.The reading on a pressure gauge connected to the pipe at point A will be lower than the reading on a pressure gauge connected to the pipe at point B.

A submarine dives to a depth of 50 meters in the ocean. (a)What is the gauge pressure at this depth? (b)What is the force acting on a hatch that has an area of 2.5 square meters?

The nucleus of an atom contains

The ratio of the density of a material to the density of water is the __________.

A person weighing 180 pounds stands on snowshoes.If the total area of the 2 snowshoes is 900 square inches,what is the pressure on the snow?

The brakes in a car work because of Pascal's principle.

The upward force exerted by a fluid on an object immersed in it is called the buoyant pressure.

The central core inside an atom is

The molecule is the basic unit of all

Two inflated balloons are of identical size and shape,but one is filled with hydrogen,the other helium.Which has the larger buoyant force on it?

The Study of Motion

Newtons Laws

Energy and Conservation Laws

Temperature and Heat

Waves and Sound

Electricity

Electromagnetism and Em Waves

Optics

Atomic Physics

Nuclear Physics

Special Relativity and Elementary Particles

Filters

Two pistons push down on the fluid filling two cylinders connected by a narrow hose,as shown in the figure.The area A₁ is 1 square inch,and the area A₂ is 10 square inches.A force of 4 pounds is exerted downward on piston 1,as shown. -The pressure on A₁ in psi is