Question 1

The pressure exerted by a gas is the result of

Accepted Answer

A)  the Bernoulli effect. 
B)  molecular collisions. 
C)  Pascal's principle. 
D)  the ideal gas law. 
E)  none of the above. 
A)  the Bernoulli effect. 
B)  molecular collisions. 
C)  Pascal's principle. 
D)  the ideal gas law. 
E)  none of the above.

Question 2

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 one half the pressure on your right palm.

Accepted Answer

A) True 
 B)False

Question 3

The air we breathe is mostly oxygen.

Accepted Answer

A) True 
 B)False

Question 4

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

Question 5

An ionized gas is a state of matter called a __________.

Accepted Answer

The answer of An ionized gas is a state of...

Question 6

You measure the pressure of a tire in Atlanta, GA and find it to be 35 psi.  If the tire is taken to Denver, CO (with no other changes made) the pressure will read lower in Denver than in Atlanta.

Accepted Answer

A) True 
 B)False

Question 7

Normal atmospheric pressure is

Accepted Answer

A)  14.7 psi. 
B)  1 N/m 2. 
C)  zero. 
D)  760 mm of mercury. 
E)  101,000 pascals.
F) none of the above. 
A)  14.7 psi. 
B)  1 N/m 2. 
C)  zero. 
D)  760 mm of mercury. 
E)  101,000 pascals.
F) none of the above.

Question 8

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 9

A rock brought back from the Moon weighs 4 pounds and has a volume of 0.02 cubic feet. What is the rock's weight density?

Accepted Answer

The answer of A rock brought back from the Moon...

Question 10

psi is a unit of force.

Accepted Answer

A) True 
 B)False

Question 11

When an object floats in a liquid, the buoyant force is __________ the weight of the object.

Accepted Answer

The answer of When an object floats in a liquid,...

Question 12

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 13

The positively charged particle inside an atom is the nucleus.

Accepted Answer

A) True 
 B)False

Question 14

The difference between the pressures inside and outside a tire is called

Accepted Answer

A)  absolute pressure. 
B)  gauge pressure. 
C)  atmospheric pressure. 
D)  psi. 
E)  none of the above. 
A)  absolute pressure. 
B)  gauge pressure. 
C)  atmospheric pressure. 
D)  psi. 
E)  none of the above.

Question 15

About how big is an atom?

Accepted Answer

A)  too small to measure 
B)  about a millionth of a meter across 
C)  about a billionth of a meter across 
D)  about a trillionth of a meter across 
E)  none of the above 
A)  too small to measure 
B)  about a millionth of a meter across 
C)  about a billionth of a meter across 
D)  about a trillionth of a meter across 
E)  none of the above

Question 16

Air can be compressed easily because there is a great deal of empty space between air molecules.

Accepted Answer

A) True 
 B)False

Question 17

How many elements have been identified?

Accepted Answer

A)  92 
B)  104 
C)  114 
D)  over 200 
E)  none of the above 
A)  92 
B)  104 
C)  114 
D)  over 200 
E)  none of the above

Question 18

Two pistons push down on the fluid filling two cylinders connected by a narrow hose, as shown in the figure. The area A 1 is 1 square inch, and the area A 2 is 10 square inches. A force of 4 pounds is exerted downward on piston 1, as shown.   The pressure on A 1 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 19

Gases and liquids are both fluids.

Accepted Answer

A) True 
 B)False

Question 20

DNA is a complex

Accepted Answer

A)  atom. 
B)  molecule. 
C)  life form. 
D)  mystery. 
E)  acronym. 
A)  atom. 
B)  molecule. 
C)  life form. 
D)  mystery. 
E)  acronym.

The pressure exerted by a gas is the result of

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 one half the pressure on your right palm.

The air we breathe is mostly oxygen.

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.

An ionized gas is a state of matter called a __________.

You measure the pressure of a tire in Atlanta, GA and find it to be 35 psi. If the tire is taken to Denver, CO (with no other changes made) the pressure will read lower in Denver than in Atlanta.

Normal atmospheric pressure is

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.

A rock brought back from the Moon weighs 4 pounds and has a volume of 0.02 cubic feet. What is the rock's weight density?

psi is a unit of force.

When an object floats in a liquid, the buoyant force is __________ the weight of the object.

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

The positively charged particle inside an atom is the nucleus.

The difference between the pressures inside and outside a tire is called

About how big is an atom?

Air can be compressed easily because there is a great deal of empty space between air molecules.

How many elements have been identified?

Two pistons push down on the fluid filling two cylinders connected by a narrow hose, as shown in the figure. The area A ₁ is 1 square inch, and the area A ₂ is 10 square inches. A force of 4 pounds is exerted downward on piston 1, as shown. The pressure on A ₁ in psi is

Gases and liquids are both fluids.

DNA is a complex

The Study of Motion

Newton S 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

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Exam 4: Physics of Matter

The pressure exerted by a gas is the result of

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 one half the pressure on your right palm.

The air we breathe is mostly oxygen.

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.

An ionized gas is a state of matter called a __________.

You measure the pressure of a tire in Atlanta, GA and find it to be 35 psi. If the tire is taken to Denver, CO (with no other changes made) the pressure will read lower in Denver than in Atlanta.

Normal atmospheric pressure is

A rock brought back from the Moon weighs 4 pounds and has a volume of 0.02 cubic feet. What is the rock's weight density?

psi is a unit of force.

When an object floats in a liquid, the buoyant force is __________ the weight of the object.

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

The positively charged particle inside an atom is the nucleus.

The difference between the pressures inside and outside a tire is called

About how big is an atom?

Air can be compressed easily because there is a great deal of empty space between air molecules.

How many elements have been identified?

Two pistons push down on the fluid filling two cylinders connected by a narrow hose, as shown in the figure. The area A 1 is 1 square inch, and the area A 2 is 10 square inches. A force of 4 pounds is exerted downward on piston 1, as shown. The pressure on A 1 in psi is

Gases and liquids are both fluids.

DNA is a complex

The Study of Motion

Newton S 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 A ₁ is 1 square inch, and the area A ₂ is 10 square inches. A force of 4 pounds is exerted downward on piston 1, as shown. The pressure on A ₁ in psi is