Question 1

If the outside air pressure decreases,the reading on a tire gauge connected to a tire __________.

Accepted Answer

The answer of If the outside air pressure decreases,the reading...

Question 2

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 __________ the reading on a pressure gauge connected to the pipe at point B.

Accepted Answer

The answer of Water is flowing through a pipe whose...

Question 3

A gold brick measuring 0.25 ft by 0.33 ft by 1 ft is submerged in water.The weight density of gold is 1,200 pounds per cubic foot and the weight density of water is 62.4 pounds per cubic foot.
(a)What is the weight of the gold brick?
(b)What is the buoyant force on the gold brick?
(c)What is the net force on the gold brick?

Accepted Answer

The answer of A gold brick measuring 0.25 ft by...

Question 4

The body of a swimmer occupies a volume of 2 cubic feet.What is the buoyant force when the swimmer is immersed in water? (The weight density of water is 62.4 pounds per cubic foot. )

Accepted Answer

The answer of The body of a swimmer occupies a...

Question 5

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 A2 in psi is

Accepted Answer

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

Question 6

​​Match each item with the correct statement below.
-the relative pressure between two places

Accepted Answer

A) ​absolute pressure 
B) atom 
C) ​atmosphere 
D) barometer 
E) buoyant force
F)​electron
G)gas
H)​gauge pressure
I)liquid
J)​mixture
K)molecule
L)neutron
M)plasma
N)proton
O)specific gravity

Question 7

A helium balloon rises because of Archimedes' principle.

Accepted Answer

A) True 
 B)False

Question 8

The cabin pressure of a passenger jet cruising at high altitude (30,000 ft)is about 1 atm.and the pressure outside is about 0.3 atm.What is the outward force on a window measuring 1 foot by 1 foot.

Accepted Answer

A) 10.3 lb 
B) 100.3 lb 
C) 1,000.3 lb 
D) 1,481.8 lb 
E) 2,116.8 lb

Question 9

If pressure inside a cylinder with a circular hatch is 2 atm and the radius of the entrance hatch is 12 inches,what force does the air exert on the hatch? Recall that the area of a circle is πr2

Accepted Answer

A) 24 lb 
B) 288 lb 
C) 904.8 lb 
D) 1,300.6 lb 
E) 13,300.6 lb

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

The positively charged particle inside an atom is the nucleus.

Accepted Answer

A) True 
 B)False

Question 12

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 force on your left palm is __________ the force on your right palm.

Accepted Answer

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

Question 13

A plasma state of matter is

Accepted Answer

A) a conducting solid. 
B) a part of the blood. 
C) an ionized gas. 
D) a conducting liquid. 
E) none of the above.

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

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 _____________ the reading on a pressure gauge connected to the pipe at point B.

Accepted Answer

A) the same as 
B) higher than 
C) lower than 
D) unrelated to

Question 16

If the outside air pressure decreases,the reading on a tire gauge connected to a tire decreases.

Accepted Answer

A) True 
 B)False

Question 17

The gauge pressure inside a pressure cooker is 13 psi.What is the net force on the lid of the pressure cooker if the lid's area is 110 square inches?

Accepted Answer

The answer of The gauge pressure inside a pressure cooker...

Question 18

The absolute pressure is

Accepted Answer

A) the gauge pressure plus 1 atmosphere. 
B) the gauge pressure plus the atmospheric pressure. 
C) the gauge pressure minus the atmospheric pressure. 
D) the atmospheric pressure plus 14.7 psi.

Question 19

The hydraulic system in modern aircraft is an example of:

Accepted Answer

A) Bernoulli's principle. 
B) Pascal's principle. 
C) Archimedes' principle. 
D) Galileo's principle.

Question 20

When people get into a small boat it settles lower in the water and

Accepted Answer

A) the buoyant force increases as a result of more water being displaced. 
B) the net force on the boat again becomes zero. 
C) the pressure on the bottom of the boat becomes greater because it is deeper in the water. 
D) all of the above.

Exam 4: Physics of Matter

If the outside air pressure decreases,the reading on a tire gauge connected to a tire __________.

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 __________ the reading on a pressure gauge connected to the pipe at point B.

The body of a swimmer occupies a volume of 2 cubic feet.What is the buoyant force when the swimmer is immersed in water? (The weight density of water is 62.4 pounds per cubic foot. )

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 A₂ in psi is

Match each item with the correct statement below. -the relative pressure between two places

A helium balloon rises because of Archimedes' principle.

The cabin pressure of a passenger jet cruising at high altitude (30,000 ft) is about 1 atm.and the pressure outside is about 0.3 atm.What is the outward force on a window measuring 1 foot by 1 foot.

If pressure inside a cylinder with a circular hatch is 2 atm and the radius of the entrance hatch is 12 inches,what force does the air exert on the hatch? Recall that the area of a circle is πr²

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

The positively charged particle inside an atom is the nucleus.

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 force on your left palm is __________ the force on your right palm.

A plasma state of matter is

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

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 _____________ the reading on a pressure gauge connected to the pipe at point B.

If the outside air pressure decreases,the reading on a tire gauge connected to a tire decreases.

The gauge pressure inside a pressure cooker is 13 psi.What is the net force on the lid of the pressure cooker if the lid's area is 110 square inches?

The absolute pressure is

The hydraulic system in modern aircraft is an example of:

When people get into a small boat it settles lower in the water and

Exam 4: Physics of Matter

If the outside air pressure decreases,the reading on a tire gauge connected to a tire __________.

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 __________ the reading on a pressure gauge connected to the pipe at point B.

The body of a swimmer occupies a volume of 2 cubic feet.What is the buoyant force when the swimmer is immersed in water? (The weight density of water is 62.4 pounds per cubic foot. )

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 A2 in psi is

​​Match each item with the correct statement below. -the relative pressure between two places

A helium balloon rises because of Archimedes' principle.

The cabin pressure of a passenger jet cruising at high altitude (30,000 ft) is about 1 atm.and the pressure outside is about 0.3 atm.What is the outward force on a window measuring 1 foot by 1 foot.

If pressure inside a cylinder with a circular hatch is 2 atm and the radius of the entrance hatch is 12 inches,what force does the air exert on the hatch? Recall that the area of a circle is πr2

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

The positively charged particle inside an atom is the nucleus.

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 force on your left palm is __________ the force on your right palm.

A plasma state of matter is

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

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 _____________ the reading on a pressure gauge connected to the pipe at point B.

If the outside air pressure decreases,the reading on a tire gauge connected to a tire decreases.

The gauge pressure inside a pressure cooker is 13 psi.What is the net force on the lid of the pressure cooker if the lid's area is 110 square inches?

The absolute pressure is

The hydraulic system in modern aircraft is an example of:

When people get into a small boat it settles lower in the water and

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 A₂ in psi is

Match each item with the correct statement below. -the relative pressure between two places

If pressure inside a cylinder with a circular hatch is 2 atm and the radius of the entrance hatch is 12 inches,what force does the air exert on the hatch? Recall that the area of a circle is πr²