Question 1

Heat transfer by radiation occurs via

Accepted Answer

A)  electromagnetic waves.
B)  nuclear decay.
C)  molecular collisions.
D)  the solar wind.
E)  none of the above. A

Question 2

specific heat capacity of ice = 2,000 J/kg-°C
latent heat of fusion of water = 334,000 J/kg
specific heat capacity of water = 4,000 J/kg-°C
-After the 1 kg block of ice melts,the amount of heat required to raise its temperature to 10°C is __________.

Accepted Answer

40,000 J

Question 3

A piece of chocolate melts in your mouth.This is an example of

Accepted Answer

A)  heat conduction.
B)  heat convection.
C)  heat radiation.
D)  thermal expansion.
E)  none of the above. A

Question 4

Match each item with the correct statement below.
-this is how we receive heat from the Sun

Accepted Answer

A)  bimetallic strip
B)  Carnot efficiency
C)  conduction
D)  convection
E)  entropyF) evaporationG) heatH) heat engineI) heat moverJ) humidityK) internal energyL) radiationM) saturation densityN) temperature

Question 5

A liquid cannot be heated simultaneously by conduction,convection,and radiation.

Accepted Answer

A) True 
 B)False

Question 6

Which mechanism(s)of heat transfer will work in a vacuum?

Accepted Answer

A)  conduction
B)  convection
C)  radiation
D)  none of the above

Question 7

specific heat capacity of ice = 2,000 J/kg-°C
latent heat of fusion of water = 334,000 J/kg
specific heat capacity of water = 4,000 J/kg-°C
-After the 1 kg block of ice melts,the amount of heat required to raise its temperature to 10°C is 3,340,000 J.

Accepted Answer

A) True 
 B)False

Question 8

An aluminum wing on a plane is 38 m long when the temperature is 20 ^oC.At what temperature (in ^oC)would the wing be 0.04 m shorter? Enter your answer to one decimal place.You should think about the physics of the situation before trying to solve the problem.(Hint: You are being asked for a temperature,not a temperature change).

Accepted Answer

The answer of An aluminum wing on a plane is...

Question 9

Heat flows from

Accepted Answer

A)  cold to hot.
B)  hot to cold.
C)  Kelvin to Celsius.
D)  the same as temperature.

Question 10

The change in size of an object due to thermal expansion depends upon

Accepted Answer

A)  what the object is made of.
B)  the object's original size.
C)  how much the temperature changes.
D)  A and C.
E)  all of the above.

Question 11

A piston compresses a gas,while at the same time heat is lost to the surroundings.The temperature of the gas rises.This is governed by the __________ law of thermodynamics.

Accepted Answer

The answer of A piston compresses a gas,while at the...

Question 12

Natural processes tend to increase the entropy of thermodynamic systems.

Accepted Answer

A) True 
 B)False

Question 13

specific heat capacity of ice = 2,000 J/kg-°C
latent heat of fusion of water = 334,000 J/kg
specific heat capacity of water = 4,000 J/kg-°C
-The 1 kg block of ice melts into water.The amount of heat absorbed by the ice as it melts is __________.

Accepted Answer

The answer of specific heat capacity of ice = 2,000...

Question 14

Evaporation is when a gas is converted into a liquid.

Accepted Answer

A) True 
 B)False

Question 15

When water boils,its temperature increases.

Accepted Answer

A) True 
 B)False

Question 16

At 96° F the saturation density of air is 0.04 kg/m3.If the weather report says the relative humidity is 90 % when the temperature is 96°F,the humidity is

Accepted Answer

A)  10 %.
B)  0.9.
C)  0.004 kg/m3.
D)  0.036 kg/m3.
E)  0.04 kg/m3.

Question 17

Absolute zero is

Accepted Answer

A)  0 K.
B)  - 459.67°F.
C)  - 273.15°C.
D)  0 on any temperature scale.

Question 18

The first law of thermodynamics is basically a special version of the law of ______________.

Accepted Answer

The answer of The first law of thermodynamics is basically...

Question 19

specific heat capacity of ice = 2,000 J/kg-°C
latent heat of fusion of water = 334,000 J/kg
specific heat capacity of water = 4,000 J/kg-°C
-A 1 kg block of ice is removed from a freezer where its temperature was -10°C.The amount of heat absorbed by the ice as it warms to 0°C is

Accepted Answer

A)  2,000 J.
B)  4,000 J.
C)  20,000 J.
D)  40,000 J.
E)  334,000 J.

Question 20

Two devices that make use of a bimetallic strip are a __________ and a __________.

Accepted Answer

The answer of Two devices that make use of a...

Exam 5: Temperature and Heat

Heat transfer by radiation occurs via

specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C -After the 1 kg block of ice melts,the amount of heat required to raise its temperature to 10°C is __________.

A piece of chocolate melts in your mouth.This is an example of

Match each item with the correct statement below. -this is how we receive heat from the Sun

A liquid cannot be heated simultaneously by conduction,convection,and radiation.

Which mechanism(s) of heat transfer will work in a vacuum?

specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C -After the 1 kg block of ice melts,the amount of heat required to raise its temperature to 10°C is 3,340,000 J.

Heat flows from

The change in size of an object due to thermal expansion depends upon

A piston compresses a gas,while at the same time heat is lost to the surroundings.The temperature of the gas rises.This is governed by the __________ law of thermodynamics.

Natural processes tend to increase the entropy of thermodynamic systems.

specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C -The 1 kg block of ice melts into water.The amount of heat absorbed by the ice as it melts is __________.

Evaporation is when a gas is converted into a liquid.

When water boils,its temperature increases.

At 96° F the saturation density of air is 0.04 kg/m³.If the weather report says the relative humidity is 90 % when the temperature is 96°F,the humidity is

Absolute zero is

The first law of thermodynamics is basically a special version of the law of ______________.

specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C -A 1 kg block of ice is removed from a freezer where its temperature was -10°C.The amount of heat absorbed by the ice as it warms to 0°C is

Two devices that make use of a bimetallic strip are a and a .