Question 1

The coefficient of linear expansion of a certain solid is 11 × 10-6/C°.Assuming this solid behaves like most solids, what is its coefficient of volume expansion?

Accepted Answer

A) 22 × 10-6/C° 
B) 33 × 10-36/C° 
C) 33 × 10-6/C° 
D) 13 × 10-5/C° 
E) 13 × 10-4/C° 
A) 22 × 10-6/C° 
B) 33 × 10-36/C° 
C) 33 × 10-6/C° 
D) 13 × 10-5/C° 
E) 13 × 10-4/C°

Question 2

Heat is added to a substance, but its temperature does not rise.Which one of the following statements provides the best explanation for this observation?

Accepted Answer

A) The substance must be a gas. 
B) The substance must be a non-perfect solid. 
C) The substance undergoes a change of phase. 
D) The substance has unusual thermal properties. 
E) The substance must be cooler than its environment. 
A) The substance must be a gas. 
B) The substance must be a non-perfect solid. 
C) The substance undergoes a change of phase. 
D) The substance has unusual thermal properties. 
E) The substance must be cooler than its environment.

Question 3

Given the following information, determine the relative humidity at 15 °C.

Accepted Answer

A) 39.0 % 
B) 47.9 % 
C) 50.8 % 
D) 64.1 % 
E) 71.9 % 
A) 39.0 % 
B) 47.9 % 
C) 50.8 % 
D) 64.1 % 
E) 71.9 %

Question 4

The units of heat are equivalent to those of which one of the following quantities?

Accepted Answer

A) force/time 
B) work 
C) temperature 
D) specific heat capacity 
E) power 
A) force/time 
B) work 
C) temperature 
D) specific heat capacity 
E) power

Question 5

An aluminum plate has a length of 0.12 m and a width of 0.10 m at 25 °C.The plate is uniformly heated to 225 °C.If the linear expansion coefficient for aluminum is 2.3 × 10-5/C°, what is the change in the area of the plate as a result of the increase in temperature?

Accepted Answer

A) 1.2 × 10-4 m2 
B) 6.1 × 10-4 m2 
C) 3.2 × 10-5 m2 
D) 4.9 × 10-6 m2 
E) 7.8 × 10-6 m2 
A) 1.2 × 10-4 m2 
B) 6.1 × 10-4 m2 
C) 3.2 × 10-5 m2 
D) 4.9 × 10-6 m2 
E) 7.8 × 10-6 m2

Question 6

Heat is added to a sample of water in an insulated container.Which one of the following statements is necessarily true?

Accepted Answer

A) The temperature of the water will rise. 
B) The volume of the water must decrease. 
C) The mass of the system must decrease. 
D) Under certain conditions, the temperature of the water can decrease. 
E) The type of change that will occur depends on the original temperature of the water. 
A) The temperature of the water will rise. 
B) The volume of the water must decrease. 
C) The mass of the system must decrease. 
D) Under certain conditions, the temperature of the water can decrease. 
E) The type of change that will occur depends on the original temperature of the water.

Question 7

What is the specific heat capacity of this substance in its solid state?

Accepted Answer

A) 0.33 cal/(g · C°) 
B) 0.75 cal/(g · C°) 
C) 1.00 cal/(g · C°) 
D) 1.33 cal/(g · C°) 
E) 3.00 cal/(g · C°) 
A) 0.33 cal/(g · C°) 
B) 0.75 cal/(g · C°) 
C) 1.00 cal/(g · C°) 
D) 1.33 cal/(g · C°) 
E) 3.00 cal/(g · C°)

Question 8

A 2.00-kg metal object requires 1.00 × 104 J of heat to raise its temperature from 20.0 °C to 40.0 °C.What is the specific heat capacity of the metal?

Accepted Answer

A) 50.0 J/(kg · C°) 
B) 125 J/(kg · C°) 
C) 250 J/(kg · C°) 
D) 500 J/(kg · C°) 
E) 1.00 × 103 J/(kg · C°) 
A) 50.0 J/(kg · C°) 
B) 125 J/(kg · C°) 
C) 250 J/(kg · C°) 
D) 500 J/(kg · C°) 
E) 1.00 × 103 J/(kg · C°)

Question 9

Which one of the following temperatures is approximately equal to the typical temperature of a classroom?

Accepted Answer

A) 0 K 
B) 0 °C 
C) 100 °C 
D) 100 K 
E) 293 K 
A) 0 K 
B) 0 °C 
C) 100 °C 
D) 100 K 
E) 293 K

Question 10

The specific heat capacity of iron is approximately half that of aluminum.Two balls of equal mass, one made of iron and the other of aluminum, both at 90 °C, are dropped into a thermally insulated jar that contains an equal mass of water at 25 °C.Thermal equilibrium is eventually reached.Which one of the following statements concerning the final temperatures is true?

Accepted Answer

A) Both balls will reach the same final temperature. 
B) The iron ball will reach a higher final temperature than the aluminum ball. 
C) The aluminum ball will reach a higher final temperature than the iron ball. 
D) The difference in the final temperatures of the balls depends on the initial mass of the water. 
E) The difference in the final temperatures of the balls depends on the initial temperature of the water. 
A) Both balls will reach the same final temperature. 
B) The iron ball will reach a higher final temperature than the aluminum ball. 
C) The aluminum ball will reach a higher final temperature than the iron ball. 
D) The difference in the final temperatures of the balls depends on the initial mass of the water. 
E) The difference in the final temperatures of the balls depends on the initial temperature of the water.

Question 11

During an evening news broadcast in Helsinki, Finland, the meteorologist indicated that the day's lowest temperature was -6.0 °C.What is the corresponding value of this temperature on the Fahrenheit scale?

Accepted Answer

A) -7.2 °F 
B) -4.0 °F 
C) 21 °F 
D) 25 °F 
E) 39 °F 
A) -7.2 °F 
B) -4.0 °F 
C) 21 °F 
D) 25 °F 
E) 39 °F

Question 12

A 2.0-g sample of steam at 100 °C loses 1140 calories of heat.What is the resulting temperature of the sample?

Accepted Answer

A) 60 °C 
B) 70 °C 
C) 80 °C 
D) 96 °C 
E) 99 °C 
A) 60 °C 
B) 70 °C 
C) 80 °C 
D) 96 °C 
E) 99 °C

Question 13

A 200.0-kg object is attached via an ideal pulley system to paddle wheels that are submerged in 0.480 kg of glycerin at 20.0 °C in an insulated container as shown.Then, the object falls through a distance of 5.00 m causing the paddle wheel to turn.Assuming all of the mechanical energy lost by the falling object goes into the water, determine the final temperature of the glycerin.The specific heat capacity of glycerin is 2410 J/   Co).

Accepted Answer

A) 4.90 °C 
B) 28.5 °C 
C) 24.9 °C 
D) 40.4 °C 
E) 8.47 °C 
A) 4.90 °C 
B) 28.5 °C 
C) 24.9 °C 
D) 40.4 °C 
E) 8.47 °C

Question 14

What is the specific heat capacity of this substance in its liquid state?

Accepted Answer

A) 0.33 cal/(g · C°) 
B) 0.75 cal/(g · C°) 
C) 1.00 cal/(g · C°) 
D) 1.33 cal/(g · C°) 
E) 3.00 cal/(g · C°) 
A) 0.33 cal/(g · C°) 
B) 0.75 cal/(g · C°) 
C) 1.00 cal/(g · C°) 
D) 1.33 cal/(g · C°) 
E) 3.00 cal/(g · C°)

Question 15

12-1
A 2.00-kg metal block slides on a rough, horizontal surface inside an insulated pipe.After sliding a distance of 500.0 m, its temperature is increased by 2.00 °C.Note: Assume that all of the heat generated by frictional heating goes into the metal block.For this metal, the specific heat capacity is 0.150 cal/(g · C°).  
-Complete the following statement: When a substance undergoes fusion it

Accepted Answer

A) freezes. 
B) sublimes. 
C) condenses. 
D) vaporizes. 
E) evaporates. 
A) freezes. 
B) sublimes. 
C) condenses. 
D) vaporizes. 
E) evaporates.

Question 16

Which one of the following would probably not be used as a temperature sensitive property in the construction of a thermometer?

Accepted Answer

A) the change in mass of a solid 
B) the change in volume of a liquid 
C) the change in length of a metal rod 
D) the change in electrical resistance of a wire 
E) the change in pressure of a gas at constant volume 
A) the change in mass of a solid 
B) the change in volume of a liquid 
C) the change in length of a metal rod 
D) the change in electrical resistance of a wire 
E) the change in pressure of a gas at constant volume

Question 17

What is the minimum amount of energy required to completely melt a 7.25-kg lead brick which has a starting temperature of 18.0 °C? The melting point of lead is 328 °C.The specific heat capacity of lead is 128 J/(kg · C°); and its latent heat of fusion is 23 200 J/kg.

Accepted Answer

A) 1.20 × 105 J 
B) 1.68 × 105 J 
C) 2.88 × 105 J 
D) 4.56 × 105 J 
E) 7.44 × 105 J 
A) 1.20 × 105 J 
B) 1.68 × 105 J 
C) 2.88 × 105 J 
D) 4.56 × 105 J 
E) 7.44 × 105 J

Question 18

An ordinary mercury thermometer at room temperature is quickly placed in a beaker of hot water.The mercury column is observed to drop slightly before it rises to the final equilibrium temperature.Which one of the following statements is the best explanation for this behavior?

Accepted Answer

A) The glass envelope expands before the heat reaches the mercury. 
B) The expansion coefficient of glass is larger than that of mercury. 
C) Both the mercury and the glass initially expand, but at different rates. 
D) Initially, the mercury contracts. 
E) Initially, the glass envelop contracts. 
A) The glass envelope expands before the heat reaches the mercury. 
B) The expansion coefficient of glass is larger than that of mercury. 
C) Both the mercury and the glass initially expand, but at different rates. 
D) Initially, the mercury contracts. 
E) Initially, the glass envelop contracts.

Question 19

A thin, circular disc is made of lead and has a radius of 0.0350 cm at 20.0 °C.Determine the change in the area of the circle if the temperature is increased to 625.0 °C.The coefficient of linear thermal expansion for lead is 29.0 × 10-6/C°.

Accepted Answer

A) 4.33 × 10-5 cm2 
B) 1.36 × 10-4 cm2 
C) 1.89 × 10-4 cm2 
D) 3.19 × 10-4 cm2 
E) 5.92 × 10-4 cm2 
A) 4.33 × 10-5 cm2 
B) 1.36 × 10-4 cm2 
C) 1.89 × 10-4 cm2 
D) 3.19 × 10-4 cm2 
E) 5.92 × 10-4 cm2

Question 20

Complete the following statement: Bimetallic strips used as adjustable switches in electric appliances consist of metallic strips that must have different

Accepted Answer

A) mass. 
B) length. 
C) volume. 
D) expansion coefficients. 
E) specific heat capacities. 
A) mass. 
B) length. 
C) volume. 
D) expansion coefficients. 
E) specific heat capacities.

Exam 12: Temperature and Heat

The coefficient of linear expansion of a certain solid is 11 × 10-6/C°.Assuming this solid behaves like most solids, what is its coefficient of volume expansion?

Heat is added to a substance, but its temperature does not rise.Which one of the following statements provides the best explanation for this observation?

Given the following information, determine the relative humidity at 15 °C.

The units of heat are equivalent to those of which one of the following quantities?

An aluminum plate has a length of 0.12 m and a width of 0.10 m at 25 °C.The plate is uniformly heated to 225 °C.If the linear expansion coefficient for aluminum is 2.3 × 10-5/C°, what is the change in the area of the plate as a result of the increase in temperature?

Heat is added to a sample of water in an insulated container.Which one of the following statements is necessarily true?

What is the specific heat capacity of this substance in its solid state?

A 2.00-kg metal object requires 1.00 × 104 J of heat to raise its temperature from 20.0 °C to 40.0 °C.What is the specific heat capacity of the metal?

Which one of the following temperatures is approximately equal to the typical temperature of a classroom?

During an evening news broadcast in Helsinki, Finland, the meteorologist indicated that the day's lowest temperature was -6.0 °C.What is the corresponding value of this temperature on the Fahrenheit scale?

A 2.0-g sample of steam at 100 °C loses 1140 calories of heat.What is the resulting temperature of the sample?

What is the specific heat capacity of this substance in its liquid state?

Which one of the following would probably not be used as a temperature sensitive property in the construction of a thermometer?

What is the minimum amount of energy required to completely melt a 7.25-kg lead brick which has a starting temperature of 18.0 °C? The melting point of lead is 328 °C.The specific heat capacity of lead is 128 J/(kg · C°); and its latent heat of fusion is 23 200 J/kg.

An ordinary mercury thermometer at room temperature is quickly placed in a beaker of hot water.The mercury column is observed to drop slightly before it rises to the final equilibrium temperature.Which one of the following statements is the best explanation for this behavior?

A thin, circular disc is made of lead and has a radius of 0.0350 cm at 20.0 °C.Determine the change in the area of the circle if the temperature is increased to 625.0 °C.The coefficient of linear thermal expansion for lead is 29.0 × 10-6/C°.

Complete the following statement: Bimetallic strips used as adjustable switches in electric appliances consist of metallic strips that must have different

Introduction and Mathematical Concepts

Kinematics in One Dimension

Kinematics in Two Dimensions

Forces and Newtons Laws of Motion

Dynamics of Uniform Circular Motion

Work and Energy

Impulse and Momentum

Rotational Kinematics

Rotational Dynamics

Simple Harmonic Motion and Elasticity

Fluids

The Transfer of Heat

The Ideal Gas Law and Kinetic Theory

Thermodynamics

Waves and Sound

The Principle of Linear Superposition and Interference Phenomena

Electric Forces and Electric Fields

Electric Potential Energy and the Electric Potential

Electric Circuits

Magnetic Forces and Magnetic Fields

Electromagnetic Induction

Alternating Current Circuits

Electromagnetic Waves

The Reflection of Light: Mirrors

The Refraction of Light: Lenses and Optical Instruments

Interference and the Wave Nature of Light

Special Relativity

Particles and Waves

The Nature of the Atom

Nuclear Physics and Radioactivity

Ionizing Radiation, Nuclear Energy, and Elementary Particles

Filters

The coefficient of linear expansion of a certain solid is 11 × 10^-⁶/C°.Assuming this solid behaves like most solids, what is its coefficient of volume expansion?

An aluminum plate has a length of 0.12 m and a width of 0.10 m at 25 °C.The plate is uniformly heated to 225 °C.If the linear expansion coefficient for aluminum is 2.3 × 10^-⁵/C°, what is the change in the area of the plate as a result of the increase in temperature?

A 2.00-kg metal object requires 1.00 × 10⁴ J of heat to raise its temperature from 20.0°C to 40.0°C.What is the specific heat capacity of the metal?

A thin, circular disc is made of lead and has a radius of 0.0350 cm at 20.0 °C.Determine the change in the area of the circle if the temperature is increased to 625.0 °C.The coefficient of linear thermal expansion for lead is 29.0 × 10^-⁶/C°.