1) The air in your room is composed of molecules that have |
B) a wide variety of speeds. |
2) The kind of molecular motion that mostly relates to the temperature of a substance is |
A) translational motion. |
3) Translational motion is characterized by |
C) both of these |
4) Temperature is most closely related to molecular |
A) kinetic energy. |
5) Which temperature scales have equal sized degrees? |
C) Celsius and Kelvin |
6) Which temperature scale has the smallest sized degrees? |
A) Fahrenheit |
7) A temperature difference of 10 Celsius degrees is also equal to a temperature difference of 10 on the |
B) Kelvin scale. |
8) Room temperature on the Kelvin scale is about |
C) 300 K. |
9) The fact that a thermometer "takes its own temperature" illustrates |
A) thermal equilibrium. |
10) In which is the temperature greater? |
C) both the same |
11) Internal energy is greater in a |
B) fire-engine pail of boiling-hot tea. |
12) When you touch a cold piece of ice with your finger, energy flows |
A) from your finger to the ice. |
13) When you touch a hot potato with your finger, energy flows |
B) from the potato to your finger. |
14) Compared to a giant iceberg, a hot cup of coffee has |
B) higher temperature, but less internal energy. |
15) Heat energy travels from an object with a high |
B) temperature to an object with a lower temperature. |
16) Heat energy is measured in units of |
C) both of these |
17) The amount of heat needed to raise the temperature of 1 gram of water by 1°C is |
C) 4.19 joules. |
18) When 10 grams of hot water cool by 1°C, the amount of heat given off is |
C) 41.9 joules. |
19) Which unit represents the most energy? |
B) Calorie |
20) White-hot sparks from a 4th-of-July-type sparkler that strike your skin have relatively |
D) all of the above |
21) The white-hot sparks from a 4th-of-July-type sparkler that strike your skin transfer |
A) little energy to you in spite of their high temperature |
22) Pour a liter of water at 40°C into a liter of water at 20°C and the final temperature of the two becomes |
B) at or about 30°C. |
23) Pour two liters of water at 40°C into one liter of water at 20°C and the final temperature of the two becomes |
C) more than 30°C. |
24) Place a 1-kilogram block of iron at 40°C into 1 kilogram of water at 20°C and the final temperature of the two becomes |
A) less than 30°C. |
25) A substance with a high thermal inertia has a high |
C) specific heat capacity. |
26) The quantity of heat that a substance can transfer relates to its |
D) all of the above |
27) Materials composed of molecules that absorb large amounts of energy in the form of internal vibrations and rotations have |
B) high specific heats. |
28) The specific heat capacity is highest for substances that absorb or release large quantities of heat for correspondingly |
A) small temperature changes. |
29) Aluminum has a higher specific heat capacity than iron. This means that for equal masses of aluminum and iron, the metal that heats more quickly when the same amount of heat is applied is |
B) iron. |
30) Tomatoes have a higher specific heat capacity than dough. This means that when you bite into a hot pizza |
B) the tomato sauce feels hotter than the dough. |
31) Which of the following normally warms up fastest when heat is applied? |
B) iron |
32) A substance that cools down faster than others has |
A) low specific heat capacity. |
33) A substance that heats up relatively slowly has a |
A) high specific heat capacity. |
34) A substance that heats up relatively quickly has a |
B) low specific heat capacity. |
35) Aluminum has a specific heat capacity more than twice that of copper. Place equal masses of aluminum and copper wire in a flame and the one to undergo the fastest increase in temperature will be |
A) copper. |
36) The fact that desert sand is very hot in the day and very cold at night is evidence that the specific heat capacity of sand is relatively |
A) low. |
37) One of water’s interesting thermal properties is that when heated it takes a relatively |
A) long time in changing temperature. |
38) The moderate temperatures of islands throughout the world has much to do with water’s |
C) high specific heat capacity. |
39) If the specific heat capacity of water were lower than it is, a nice hot bath would be a |
A) shorter experience. |
40) If the specific heat capacity of water were lower than it is, a watermelon in a picnic cooler would cool in a |
A) shorter time. |
41) If the specific heat of water were lower than it is, ponds in the cold of winter would be |
A) more likely to freeze. |
42) In terms of thermal expansion it is important that |
B) the fillings in your teeth expand at the same rate as teeth. |
43) A closed, sealed can of air placed on a hot stove. The contained air undergoes an increase in |
B) temperature. |
44) When most substances are heated, molecules inside move faster and take up more space, resulting in thermal |
B) expansion. |
45) When we enlarge a photograph of an iron ring, the image of the hole becomes |
B) larger. |
46) When an iron ring is heated, the hole becomes |
B) larger. |
47) As a piece of metal with a hole in it cools, the diameter of the hole |
B) decreases. |
48) Consider a metal ring with a gap cut in it. When the ring is heated, the gap |
B) becomes wider. |
49) When a bimetallic bar made of copper and iron strips is heated, the bar bends toward the iron strip. The reason for this is |
C) copper expands more than iron. |
50) It is important that the two metals that compose a bimetallic strip have |
B) different rates of expansion. |
51) The fact that gasoline overflows a full tank on a hot day is evidence that |
A) gasoline expands more with increasing temperature than its tank. |
52) In most cases, which expands more for comparable changes in temperature? |
C) gases. |
53) Which of the following expands more when the temperature is increased? Equal volumes of |
D) helium. |
54) Which of the following contracts most when the temperature is decreased? Equal volumes of |
D) helium. |
55) Which of these expands when the temperature is lowered? |
C) ice water |
56) If glass expanded more than mercury, then the column of mercury in a mercury thermometer would fall when the temperature |
A) increases. |
57) If you measure the width of an outdoor barn with a steel tape on a very cold day, your measured width will be |
B) a bit long. |
58) If you measure the distance between two telephone poles with a steel tape on a very hot day, your measured distance will be |
A) a bit short. |
59) A body of water will be deeper when its |
A) temperature rises. |
60) Which of these is correct? |
C) a piece of ice floats in water. |
61) When ice water at 0°C is heated A) thermal expansion occurs. |
C) both occur until 4°C is reached |
62) Open spaces in ice crystals contribute to |
A) decreased density. |
63) Due to the presence of ice crystals in nearly frozen liquid water, the density of water is |
A) lower. |
64) Microscopic slush in ice water tends to make water density |
A) lower. |
65) Ice has a lower density than water because ice |
C) is composed of open-structured crystals. |
66) Ice tends to form first at the |
A) surface of bodies of water. |
67) Ice crystals in nearly frozen liquid water make up a |
C) both of these |
68) When ice crystals collapse at the surface of ice, the result is a |
C) both of these. |
69) If the temperature of a sample of water at 0°C is slightly increased, its volume |
B) decreases. |
70) If the temperature of a sample of water at 4°C is slightly increased, its volume |
A) increases. |
71) If the temperature of a sample of water at 4°C is slightly lowered, its volume |
A) increases. |
72) If you wish to expand the volume of a sample of water at 4°C |
C) either of these |
73) When water at 4°C is heated it expands. If it is instead cooled it will |
B) also expand. |
74) Consider some water at 6°C. For a slight increase its temperature the water will |
A) expand. |
75) Before ice can form on a lake, all the water in the lake must be cooled to |
B) 4°C. |
76) When the temperature of a solid block of ice is lowered, its volume |
B) decreases. |
77) During a very cold winter, water pipes sometimes burst due to |
B) water expanding when freezing. |
78) The temperature at the bottom of Lake Tahoe, high in the Sierra Nevada Mountains in California, at this moment is |
B) 4°C. |
79) When ice floats in water, a small part of it extends above the surface. Interestingly, the volume of ice that extends above the surface is equal to the volume of the |
B) vast number of open spaces in all the hexagonal ice crystals. |
Chapter 15 Test 3
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