Question 1

A device that measures absolute air pressure is called a __________.

Accepted Answer

barometer

Question 2

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

Accepted Answer

A) 60 lbs. 
B) 120 lbs. 
C) 180 lbs. 
D) 240 lbs. 
E) none of the above. 
A) 60 lbs. 
B) 120 lbs. 
C) 180 lbs. 
D) 240 lbs. 
E) none of the above. D

Question 3

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

Accepted Answer

equal to

Question 4

Two pistons push down on the fluid filling two cylinders connected by a narrow hose,as shown in the figure.The area AS1U1B11 S1U1B0is 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 is 40 psi.

Accepted Answer

A) True 
 B)False

Question 5

The pressure exerted by a gas is the result of __________.

Accepted Answer

molecular

Question 6

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 7

A person weighing 200 pounds stands on snowshoes.If the area of each snowshoe is 400 square inches,the pressure on the snow is __________ psi.

Accepted Answer

The answer of A person weighing 200 pounds stands on...

Question 8

An atomizer works because of Bernoulli's principle.

Accepted Answer

A) True 
 B)False

Question 9

What elements do the symbols Fe,Na,Au,and Hg stand for?

Accepted Answer

A) aluminum,nitrogen,silver,tungsten 
B) iron,sulfur,silver,ytterbium 
C) iron,sodium,silver,mercury 
D) iron,sodium,gold,mercury 
E) none of the above 
A) aluminum,nitrogen,silver,tungsten 
B) iron,sulfur,silver,ytterbium 
C) iron,sodium,silver,mercury 
D) iron,sodium,gold,mercury 
E) none of the above

Question 10

The mass density of an object equals its _____ divided by its ________.

Accepted Answer

The answer of The mass density of an object equals...

Question 11

When you suck through a straw,the force that makes the liquid go up the straw is

Accepted Answer

A) a suction force. 
B) due to surface tension. 
C) due to the pressure of the atmosphere. 
D) antigravity. 
A) a suction force. 
B) due to surface tension. 
C) due to the pressure of the atmosphere. 
D) antigravity.

Question 12

An atomizer works because of __________ principle.

Accepted Answer

The answer of An atomizer works because of __________ principle....

Question 13

When a liquid boils and changes to a gas,it is said to have undergone a change of ________.

Accepted Answer

The answer of When a liquid boils and changes to...

Question 14

​​Match each item with the correct statement below.
-the smallest unit of a chemical element

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 
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 15

A tire pressure gauge reads 30 psi when the atmospheric pressure is 14 psi.The net force on 2 square inches of the tire is __________.

Accepted Answer

The answer of A tire pressure gauge reads 30 psi...

Question 16

The buoyant force that keeps a ship afloat is an example of __________ principle.

Accepted Answer

The answer of The buoyant force that keeps a ship...

Question 17

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 is __________.

Accepted Answer

Question 18

​​Match each item with the correct statement below.
-the upward force exerted by a fluid on anything immersed in it

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 
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 19

The particle that orbits 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 20

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

Accepted Answer

A) stays the same. 
B) increases. 
C) decreases. 
D) can not be determined. 
A) stays the same. 
B) increases. 
C) decreases. 
D) can not be determined.

A device that measures absolute air pressure is called a __________.

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

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

Two pistons push down on the fluid filling two cylinders connected by a narrow hose,as shown in the figure.The area A₁is 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 is 40 psi.

The pressure exerted by a gas is the result of __________.

About how big is an atom?

A person weighing 200 pounds stands on snowshoes.If the area of each snowshoe is 400 square inches,the pressure on the snow is __________ psi.

An atomizer works because of Bernoulli's principle.

What elements do the symbols Fe,Na,Au,and Hg stand for?

The mass density of an object equals its _ divided by its ____.

When you suck through a straw,the force that makes the liquid go up the straw is

An atomizer works because of __________ principle.

When a liquid boils and changes to a gas,it is said to have undergone a change of ________.

Match each item with the correct statement below. -the smallest unit of a chemical element

A tire pressure gauge reads 30 psi when the atmospheric pressure is 14 psi.The net force on 2 square inches of the tire is __________.

The buoyant force that keeps a ship afloat is an example of __________ principle.

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 is __________.

Match each item with the correct statement below. -the upward force exerted by a fluid on anything immersed in it

The particle that orbits the central core inside an atom is

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

The Study of Motion

Newtons Laws

Energy and Conservation Laws

Temperature and Heat

Waves and Sound

Electricity

Electromagnetism and Em Waves

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Exam 4: Physics of Matter

A device that measures absolute air pressure is called a __________.

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

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

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 is 40 psi.

The pressure exerted by a gas is the result of __________.

About how big is an atom?

A person weighing 200 pounds stands on snowshoes.If the area of each snowshoe is 400 square inches,the pressure on the snow is __________ psi.

An atomizer works because of Bernoulli's principle.

What elements do the symbols Fe,Na,Au,and Hg stand for?

The mass density of an object equals its _____ divided by its ________.

When you suck through a straw,the force that makes the liquid go up the straw is

An atomizer works because of __________ principle.

When a liquid boils and changes to a gas,it is said to have undergone a change of ________.

​​Match each item with the correct statement below. -the smallest unit of a chemical element

A tire pressure gauge reads 30 psi when the atmospheric pressure is 14 psi.The net force on 2 square inches of the tire is __________.

The buoyant force that keeps a ship afloat is an example of __________ principle.

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 is __________.

​​Match each item with the correct statement below. -the upward force exerted by a fluid on anything immersed in it

The particle that orbits the central core inside an atom is

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

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 A₁is 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 is 40 psi.

The mass density of an object equals its _ divided by its ____.

Match each item with the correct statement below. -the smallest unit of a chemical element

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 is __________.

Match each item with the correct statement below. -the upward force exerted by a fluid on anything immersed in it