Question 1

After I dip a cup of water from the ocean, I can conclude that

Accepted Answer

A)  the temperatures are the same but the water in the cup has more energy 
B)  the temperature of the water in the cup is the same as the temperature of the water in the ocean. 
C)  the ocean temperature is higher because it has more molecules in it. 
D)  the ocean temperature is higher because it never loses its heat. 
A)  the temperatures are the same but the water in the cup has more energy 
B)  the temperature of the water in the cup is the same as the temperature of the water in the ocean. 
C)  the ocean temperature is higher because it has more molecules in it. 
D)  the ocean temperature is higher because it never loses its heat.

Question 2

A box of graham crackers is labeled "120 Calories per serving." Assuming this means 120 kcal, and recalling that 4.16 J = 1 cal, the energy of a serving of the graham crackers is about

Accepted Answer

A)  5$\times$ 105 J. 
B)  5$\times$ 104 J. 
C)  4.2$\times$ 103 J. 
D)  120 J. 
A)  5$\times$ 105 J. 
B)  5$\times$ 104 J. 
C)  4.2$\times$ 103 J. 
D)  120 J.

Question 3

The temperature of a 50 g sample of aluminum is raised from 20oC to 60oC when 440 cal of heat are added. The specific heat capacity of the aluminum is

Accepted Answer

A)  not calculable from this data. 
B)  0.11 cal/g Co. 
C)  15.4 cal/g C$\degree$. 
D)  0.91 cal/g C$\degree$. 
E)  0.22 cal/g C$\degree$. 
A)  not calculable from this data. 
B)  0.11 cal/g Co. 
C)  15.4 cal/g C$\degree$. 
D)  0.91 cal/g C$\degree$. 
E)  0.22 cal/g C$\degree$.

Question 4

When heat is added to a solid object, the ____________ of the object must increase.

Accepted Answer

temperatur

Question 5

Four samples of steel, lead, alcohol, and glass all have the same mass and are all initially at 20$\degree$C. After 100 calories of heat are added to each sample, the final temperatures are 38.2$\degree$C for the steel, 85.6$\degree$C for the lead, 23.4$\degree$C for the alcohol, and 30$\degree$C for the glass. Which of these four materials has the largest specific heat capacity?

Accepted Answer

A)  The steel. 
B)  The lead. 
C)  The alcohol. 
D)  The glass. 
E)  All have the same heat capacity, since all absorbed 100 cal of heat. 
A)  The steel. 
B)  The lead. 
C)  The alcohol. 
D)  The glass. 
E)  All have the same heat capacity, since all absorbed 100 cal of heat.

Question 6

After working hard outside on a hot summer day, placing a towel soaked in cold water on your head can feel very good. The reason the towel feels cold to you is that

Accepted Answer

A)  low temperature heat from the towel conducts to your head, lowering your temperature. 
B)  cold air radiates from the towel to your head. 
C)  cold air from the towel convects to your head. 
D)  heat conducts from your head to the towel, lowering your temperature. 
A)  low temperature heat from the towel conducts to your head, lowering your temperature. 
B)  cold air radiates from the towel to your head. 
C)  cold air from the towel convects to your head. 
D)  heat conducts from your head to the towel, lowering your temperature.

Question 7

Which process does not transfer heat energy between objects?

Accepted Answer

A)  Convection. 
B)  Radiation. 
C)  Reflection. 
D)  Conduction. 
A)  Convection. 
B)  Radiation. 
C)  Reflection. 
D)  Conduction.

Question 8

The amount of heat is often measured in calories. If I add 1 calorie of heat energy to 1 gram of water, the temperature of the water will

Accepted Answer

A)  decrease by 1$\degree$F. 
B)  decrease by 1$\degree$C. 
C)  stay the same, since water has a very high specific heat. 
D)  increase by 1$\degree$F. 
E)  increase by 1$\degree$C. 
A)  decrease by 1$\degree$F. 
B)  decrease by 1$\degree$C. 
C)  stay the same, since water has a very high specific heat. 
D)  increase by 1$\degree$F. 
E)  increase by 1$\degree$C.

After I dip a cup of water from the ocean, I can conclude that

A box of graham crackers is labeled "120 Calories per serving." Assuming this means 120 kcal, and recalling that 4.16 J = 1 cal, the energy of a serving of the graham crackers is about

The temperature of a 50 g sample of aluminum is raised from 20^oC to 60^oC when 440 cal of heat are added. The specific heat capacity of the aluminum is

When heat is added to a solid object, the ____________ of the object must increase.

After working hard outside on a hot summer day, placing a towel soaked in cold water on your head can feel very good. The reason the towel feels cold to you is that

Which process does not transfer heat energy between objects?

The amount of heat is often measured in calories. If I add 1 calorie of heat energy to 1 gram of water, the temperature of the water will

Physics, the Fundamental Science

Describing Motion

Falling Objects and Projectile Motion

Newtons Laws: Explaining Motion

Circular Motion, the Planets, and Gravity

Energy and Oscillations

Momentum and Impulse

Rotational Motion of Solid Objects

The Behavior of Fluids

Heat Engines and the Second Law of Thermodynamics

Electrostatic Phenomena

Electric Circuits

Magnets and Electromagnetism

Making Waves

Light Waves and Color

Light and Image Formation

The Structure of the Atom

The Nucleus and Nuclear Energy

Relativity

Beyond Everyday Phenomena

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Exam 10: Temperature and Heat

After I dip a cup of water from the ocean, I can conclude that

A box of graham crackers is labeled "120 Calories per serving." Assuming this means 120 kcal, and recalling that 4.16 J = 1 cal, the energy of a serving of the graham crackers is about

The temperature of a 50 g sample of aluminum is raised from 20oC to 60oC when 440 cal of heat are added. The specific heat capacity of the aluminum is

When heat is added to a solid object, the ____________ of the object must increase.

After working hard outside on a hot summer day, placing a towel soaked in cold water on your head can feel very good. The reason the towel feels cold to you is that

Which process does not transfer heat energy between objects?

The amount of heat is often measured in calories. If I add 1 calorie of heat energy to 1 gram of water, the temperature of the water will

Physics, the Fundamental Science

Describing Motion

Falling Objects and Projectile Motion

Newtons Laws: Explaining Motion

Circular Motion, the Planets, and Gravity

Energy and Oscillations

Momentum and Impulse

Rotational Motion of Solid Objects

The Behavior of Fluids

Heat Engines and the Second Law of Thermodynamics

Electrostatic Phenomena

Electric Circuits

Magnets and Electromagnetism

Making Waves

Light Waves and Color

Light and Image Formation

The Structure of the Atom

The Nucleus and Nuclear Energy

Relativity

Beyond Everyday Phenomena

Filters

The temperature of a 50 g sample of aluminum is raised from 20^oC to 60^oC when 440 cal of heat are added. The specific heat capacity of the aluminum is