Compared to an identical ice cube exposed to air at room temperature, an ice cube wrapped in a wool blanket remain frozen for
1.less time.
2.the same length of time.
3.a longer time.
[Ques. 2] The slopes for the A, C, and E portions of the figure are, from least to greatest, C, A, and E. Explain what this ranking means.
[Ques. 3] Calculate the slopes for the A, C, and E portions of the figure. Rank the slopes from least to greatest.
[Ques. 4] Suppose you have 1 kg each of iron, glass, and water, and all three samples are at 10C. Rank them from least to greatest amount of energy transferred by heat if enough energy is transferred so that each increases in temperature by 20C.
1.iron, glass, water
2.water, glass, iron
3.glass, iron, water
4.water, iron, glass
5.iron, water, glass
[Ques. 5] Suppose you have 1 kg each of iron, glass, and water, and all three samples are at 10C. Rank the samples from lowest to highest temperature after 100 J of energy is added to each by heat. <--EndFragment--> e
1.iron, glass, water
2.water, glass, iron
3.glass, iron, water
4.water, iron, glass
5.iron, water, glass
[Ques. 6] One container is filled with argon gas and another with helium gas. Both containers are at the same temperature. Which molecules have the higher rms speed?
1.argon
2.helium
3.They have the same speed.
4.not enough information to say
[Ques. 7] Why doesnt the melting of ocean-based ice raise as much concern and the melting of land-based ice?
1.Unlike land-based ice, ocean-based ice already displaces water, so when it melts ocean levels wont change much.
2.Because ocean-based ice is in the oceans, it will affect the level of the oceans much more than land-based ice.
3.Both ocean-based ice and land-based ice raise the same level of concern.
[Ques. 8] Two spheres are made of the same metal and have the same radius, but one is hollow and the other is solid. The spheres are taken through the same temperature increase. Which sphere expands more?
1.solid sphere
2.hollow sphere
3.They expand by the same amount.
4.not enough information to say
[Ques. 9] If you are asked to make a very sensitive glass thermometer, which of the following working fluids would you choose?
1.mercury
2.alcohol
3.gasoline
4.glycerin
[Ques. 10] If you quickly plunge a room-temperature mercury thermometer into very hot water, the mercury level will
1.go up briefly before reaching a final reading.
2.go down briefly before reaching a final reading.
3.not change.
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