Question 1

According to Laplace's law,if the surface tension of a sphere is doubled,what will happen to the pressure within the sphere?

Accepted Answer

A)  The pressure will decrease by one half. 
B)  The pressure will increase by one half. 
C)  The pressure will quadruple. 
D)  The pressure will double. 
A)  The pressure will decrease by one half. 
B)  The pressure will increase by one half. 
C)  The pressure will quadruple. 
D)  The pressure will double. D

Question 2

The process whereby a solid directly becomes a gas is known as:

Accepted Answer

A)  latent heat. 
B)  sublimation. 
C)  evaporation. 
D)  condensation. 
A)  latent heat. 
B)  sublimation. 
C)  evaporation. 
D)  condensation. B

Question 3

A practical application of Avogadro's law is seen in the calculation of which of the following?
1)Specific gravity
2)Diffusion rate
3)Gas density
4)Osmosis

Accepted Answer

A)  1 and 2 
B)  1 and 3 
C)  2 and 4 
D)  3 and 4 
A)  1 and 2 
B)  1 and 3 
C)  2 and 4 
D)  3 and 4 B

Question 4

How many kilopascals are equal to 15 mm Hg?

Accepted Answer

A)  2 
B)  11 
C)  153 
D)  1.47 
A)  2 
B)  11 
C)  153 
D)  1.47

Question 5

The relationship of how the volume of a gas varies with temperature is known as _____ law.

Accepted Answer

A)  Gay-Lussac's 
B)  Newton's 
C)  Charles' 
D)  Boyle's 
A)  Gay-Lussac's 
B)  Newton's 
C)  Charles' 
D)  Boyle's

Question 6

How many millimeters of mercury is 25 cm H₂O?

Accepted Answer

A)  2.45 
B)  18.4 
C)  188 
D)  34 
A)  2.45 
B)  18.4 
C)  188 
D)  34

Question 7

The temperature above which gas molecules cannot be converted back to a liquid,no matter how much pressure is exerted,is known as which of the following?

Accepted Answer

A)  Critical temperature 
B)  Critical point 
C)  Boiling point 
D)  Latent heat 
A)  Critical temperature 
B)  Critical point 
C)  Boiling point 
D)  Latent heat

Question 8

It is implied that the absolute temperature of a gas will rise as the pressure is increased when which of the following occurs?

Accepted Answer

A)  Absolute temperature of the gas reaches absolute zero 
B)  Size of the container remains constant 
C)  Volume of the gas is held constant 
D)  Volume of the gas is increased 
A)  Absolute temperature of the gas reaches absolute zero 
B)  Size of the container remains constant 
C)  Volume of the gas is held constant 
D)  Volume of the gas is increased

Question 9

The unit used to express the force of 1 newton (N)acting on a 1-kilogram (kg)object to move it 1 meter (m)is which of the following?

Accepted Answer

A)  Watt 
B)  Joule 
C)  Kilowatt 
D)  Kinetic energy 
A)  Watt 
B)  Joule 
C)  Kilowatt 
D)  Kinetic energy

Question 10

An electrical current is influenced by which of the following?
1)Voltage
2)Resistance
3)Electromotive forces
4)The number of insulators

Accepted Answer

A)  1 and 2 
B)  2 and 4 
C)  3 and 4 
D)  1,2,3,and 4 
A)  1 and 2 
B)  2 and 4 
C)  3 and 4 
D)  1,2,3,and 4

Question 11

Which is the correct formula for the principles of the combined-gas law?

Accepted Answer

A)  P1V1/T1 = P2V2/T2 
B)  PVT = nR 
C)  P1V1/T2 = P2V2/T1 
D)  T2/P1V1 = T1/P2V2 
A)  P1V1/T1 = P2V2/T2 
B)  PVT = nR 
C)  P1V1/T2 = P2V2/T1 
D)  T2/P1V1 = T1/P2V2

Question 12

Which of the following does not follow Dalton's law at sea level?

Accepted Answer

A)  Oxygen 
B)  Nitrogen 
C)  Water vapor 
D)  Trace gases 
A)  Oxygen 
B)  Nitrogen 
C)  Water vapor 
D)  Trace gases

Question 13

A small-diameter glass tube is placed upright in a container of mercury.The meniscus at the top of the column of mercury is convex.This demonstrates that the:

Accepted Answer

A)  cohesive forces of mercury are weak. 
B)  cohesive forces of mercury are strong. 
C)  adhesive forces within the mercury are strong. 
D)  adhesive forces between the mercury and the glass are strong. 
A)  cohesive forces of mercury are weak. 
B)  cohesive forces of mercury are strong. 
C)  adhesive forces within the mercury are strong. 
D)  adhesive forces between the mercury and the glass are strong.

Question 14

If the velocity of an object is reduced by half,its kinetic energy will be which of the following?

Accepted Answer

A)  Reduced to one eighth 
B)  Increased twofold 
C)  Reduced twofold 
D)  Not changed 
A)  Reduced to one eighth 
B)  Increased twofold 
C)  Reduced twofold 
D)  Not changed

Question 15

Power is expressed in which of the following units?

Accepted Answer

A)  Newtons 
B)  Joules 
C)  Ohms 
D)  Watts 
A)  Newtons 
B)  Joules 
C)  Ohms 
D)  Watts

Question 16

Which gas law describes the relationship between the temperature and pressure of a gas when volume is constant?

Accepted Answer

A)  Gay-Lussac's law 
B)  Charles' law 
C)  Dalton's law 
D)  Boyle's law 
A)  Gay-Lussac's law 
B)  Charles' law 
C)  Dalton's law 
D)  Boyle's law

Question 17

How many degrees Fahrenheit is 425° K?

Accepted Answer

A)  152° F 
B)  274° F 
C)  306° F 
D)  698° F 
A)  152° F 
B)  274° F 
C)  306° F 
D)  698° F

Question 18

Boyle's law describes the relationship between which of the following?

Accepted Answer

A)  Pressure and temperature 
B)  Volume and temperature 
C)  Volume and pressure 
D)  Pressure and density 
A)  Pressure and temperature 
B)  Volume and temperature 
C)  Volume and pressure 
D)  Pressure and density

Question 19

The boiling point of liquid oxygen is which of the following?

Accepted Answer

A)  -119° C 
B)  182° F 
C)  -183° C 
D)  49.7° C 
A)  -119° C 
B)  182° F 
C)  -183° C 
D)  49.7° C

Question 20

When the movement of fluid molecules is streamlined,this flow is normally described as:

Accepted Answer

A)  straight. 
B)  laminar. 
C)  turbulent. 
D)  aerodynamic. 
A)  straight. 
B)  laminar. 
C)  turbulent. 
D)  aerodynamic.

According to Laplace's law,if the surface tension of a sphere is doubled,what will happen to the pressure within the sphere?

The process whereby a solid directly becomes a gas is known as:

A practical application of Avogadro's law is seen in the calculation of which of the following? 1)Specific gravity 2)Diffusion rate 3)Gas density 4)Osmosis

How many kilopascals are equal to 15 mm Hg?

The relationship of how the volume of a gas varies with temperature is known as _____ law.

How many millimeters of mercury is 25 cm H₂O?

The temperature above which gas molecules cannot be converted back to a liquid,no matter how much pressure is exerted,is known as which of the following?

It is implied that the absolute temperature of a gas will rise as the pressure is increased when which of the following occurs?

The unit used to express the force of 1 newton (N)acting on a 1-kilogram (kg)object to move it 1 meter (m)is which of the following?

An electrical current is influenced by which of the following? 1)Voltage 2)Resistance 3)Electromotive forces 4)The number of insulators

Which is the correct formula for the principles of the combined-gas law?

Which of the following does not follow Dalton's law at sea level?

A small-diameter glass tube is placed upright in a container of mercury.The meniscus at the top of the column of mercury is convex.This demonstrates that the:

If the velocity of an object is reduced by half,its kinetic energy will be which of the following?

Power is expressed in which of the following units?

Which gas law describes the relationship between the temperature and pressure of a gas when volume is constant?

How many degrees Fahrenheit is 425° K?

Boyle's law describes the relationship between which of the following?

The boiling point of liquid oxygen is which of the following?

When the movement of fluid molecules is streamlined,this flow is normally described as:

Principles of Infection Control

Manufacture, Storage, and Transport of Medical Gases

Administering Medical Gases: Regulators, Flowmeters, and

Airway Management Devices and Advanced Cardiac Life Support

Humidity and Aerosol Therapy

Lung Expansion Therapy Devices

Assessment of Pulmonary Function

Assessment of Cardiovascular Function

Blood Gas Monitoring

Sleep Diagnostics

Introduction to Ventilators

Mechanical Ventilators: General-Use Devices

Infant and Pediatric Devices

Transport, Home Care, and Noninvasive Ventilatory Devices

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Exam 1: Basic Physics for the Respiratory Therapist

According to Laplace's law,if the surface tension of a sphere is doubled,what will happen to the pressure within the sphere?

The process whereby a solid directly becomes a gas is known as:

A practical application of Avogadro's law is seen in the calculation of which of the following? 1)Specific gravity 2)Diffusion rate 3)Gas density 4)Osmosis

How many kilopascals are equal to 15 mm Hg?

The relationship of how the volume of a gas varies with temperature is known as _____ law.

How many millimeters of mercury is 25 cm H₂O?

The temperature above which gas molecules cannot be converted back to a liquid,no matter how much pressure is exerted,is known as which of the following?

It is implied that the absolute temperature of a gas will rise as the pressure is increased when which of the following occurs?

The unit used to express the force of 1 newton (N)acting on a 1-kilogram (kg)object to move it 1 meter (m)is which of the following?

An electrical current is influenced by which of the following? 1)Voltage 2)Resistance 3)Electromotive forces 4)The number of insulators

Which is the correct formula for the principles of the combined-gas law?

Which of the following does not follow Dalton's law at sea level?

A small-diameter glass tube is placed upright in a container of mercury.The meniscus at the top of the column of mercury is convex.This demonstrates that the:

If the velocity of an object is reduced by half,its kinetic energy will be which of the following?

Power is expressed in which of the following units?

Which gas law describes the relationship between the temperature and pressure of a gas when volume is constant?

How many degrees Fahrenheit is 425° K?

Boyle's law describes the relationship between which of the following?

The boiling point of liquid oxygen is which of the following?

When the movement of fluid molecules is streamlined,this flow is normally described as:

Principles of Infection Control

Manufacture, Storage, and Transport of Medical Gases

Administering Medical Gases: Regulators, Flowmeters, and

Airway Management Devices and Advanced Cardiac Life Support

Humidity and Aerosol Therapy

Lung Expansion Therapy Devices

Assessment of Pulmonary Function

Assessment of Cardiovascular Function

Blood Gas Monitoring

Sleep Diagnostics

Introduction to Ventilators

Mechanical Ventilators: General-Use Devices

Infant and Pediatric Devices

Transport, Home Care, and Noninvasive Ventilatory Devices

Filters