seeds_clickers_chapter7_2

seeds_clickers_chapter7_2 - Which of the following...

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Which of the following statements is true about the Celsius and Kelvin (Absolute) temperature scales? 1 2 3 4 5 20% 20% 20% 20% 20% 1. Zero is at the same temperature on both scales. 2. The size of one degree is the same on both scales. 3. Zero degrees Celsius is the same temperature as - 273 K 4. The size of one Celsius degree is 5/9 that of a Kelvin. 5. The size of one Kelvin is 5/9 that of a Celsius degree.
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The temperature of a gas is a measure of the: 1 2 3 4 5 20% 20% 20% 20% 20% 1. total amount of internal energy in the gas. 2. amount of heat that flows out of the gas. 3. total number of atoms in the gas. 4. density of the gas. 5. average motion of its atoms.
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When the sun is high above the horizon in a clear sky, it has a yellowish color. According to the black body radiation curves shown here, the sun’s surface temperature is most nearly: 1. > 7000 K 2. 7000 K 3. 6000 K 4. 5000 K 5. < 5000 K 1 2 3 4 5 20% 20% 20% 20% 20%
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If the temperature of star B is twice the temperature of star A, what can we say about the energy emitted by the surface of star B compared to the energy emitted by star A? 1 2 3 4 5 20% 20% 20% 20% 20% 1. Each square meter emits twice as much energy per second. 2. Each square meter emits four times as much energy per second. 3. Each square meter emits eight times as much energy per second. 4. Each square meter emits sixteen times as much energy per second. 5. We can not tell without knowing the size of each star.
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Which subatomic particle has a negative charge? 1 2 3 4 5 20% 20% 20% 20% 20% 1. electron 2. proton 3. neutron 4. electron; and proton 5. proton; and neutron
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that is emitted by a black body is: 1 2 3 4 5 20% 20% 20% 20% 20% 1. proportional to temperature. 2. inversely proportional to temperature. 3. proportional to temperature to the fourth power. 4. inversely proportional to temperature to the fourth power. 5.
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This note was uploaded on 09/08/2010 for the course ASTR 101 at San Jose State University .

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seeds_clickers_chapter7_2 - Which of the following...

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