# Physics equations/14-Heat and Heat Transfer/Q:SpecificHeatEnergyConductivity/Testbank

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## Contents

## a14HeatTransfer_specifHeatConduct_v1[edit]

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===2=== {<!--a14HeatTransfer_specifHeatConduct_1-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.71 kg is filled with 0.19 kg of water. How much heat does it take to raise both from 53.5 C to 86.9 C? } +a) 4.79 x 10<sup>4</sup> J -b) 5.65 x 10<sup>4</sup> J -c) 6.66 x 10<sup>4</sup> J -d) 7.85 x 10<sup>4</sup> J -e) 9.25 x 10<sup>4</sup> J ===3=== {<!--a14HeatTransfer_specifHeatConduct_1-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.82 kg is filled with 0.11 kg of water. How much heat does it take to raise both from 20.2 C to 96.9 C? } -a) 6.62 x 10<sup>4</sup> J -b) 7.8 x 10<sup>4</sup> J +c) 9.19 x 10<sup>4</sup> J -d) 1.08 x 10<sup>5</sup> J -e) 1.28 x 10<sup>5</sup> J ===4=== {<!--a14HeatTransfer_specifHeatConduct_1-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.68 kg is filled with 0.17 kg of water. How much heat does it take to raise both from 47.8 C to 83.2 C? } -a) 3.37 x 10<sup>4</sup> J -b) 3.98 x 10<sup>4</sup> J +c) 4.69 x 10<sup>4</sup> J -d) 5.52 x 10<sup>4</sup> J -e) 6.51 x 10<sup>4</sup> J ===5=== {<!--a14HeatTransfer_specifHeatConduct_1-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.99 kg is filled with 0.26 kg of water. How much heat does it take to raise both from 54.4 C to 78.1 C? } -a) 2.43 x 10<sup>4</sup> J -b) 2.86 x 10<sup>4</sup> J -c) 3.38 x 10<sup>4</sup> J -d) 3.98 x 10<sup>4</sup> J +e) 4.69 x 10<sup>4</sup> J ===6=== {<!--a14HeatTransfer_specifHeatConduct_1-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.95 kg is filled with 0.19 kg of water. How much heat does it take to raise both from 32.6 C to 75.6 C? } -a) 3.68 x 10<sup>4</sup> J -b) 4.33 x 10<sup>4</sup> J -c) 5.11 x 10<sup>4</sup> J -d) 6.02 x 10<sup>4</sup> J +e) 7.1 x 10<sup>4</sup> J ===7=== {<!--a14HeatTransfer_specifHeatConduct_1-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.61 kg is filled with 0.21 kg of water. How much heat does it take to raise both from 21.9 C to 98.6 C? } -a) 7.88 x 10<sup>4</sup> J -b) 9.29 x 10<sup>4</sup> J +c) 1.1 x 10<sup>5</sup> J -d) 1.29 x 10<sup>5</sup> J -e) 1.52 x 10<sup>5</sup> J ===8=== {<!--a14HeatTransfer_specifHeatConduct_1-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.66 kg is filled with 0.11 kg of water. How much heat does it take to raise both from 57.1 C to 78 C? } -a) 1.59 x 10<sup>4</sup> J -b) 1.87 x 10<sup>4</sup> J +c) 2.2 x 10<sup>4</sup> J -d) 2.6 x 10<sup>4</sup> J -e) 3.06 x 10<sup>4</sup> J |

## a14HeatTransfer_specifHeatConduct_v1[edit]

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===2=== {<!--a14HeatTransfer_specifHeatConduct_2-->{The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.71 kg is filled with 0.19 kg of water. What fraction of the heat went into the aluminum? } -a) 2.3 x 10<sup>-1</sup> -b) 2.7 x 10<sup>-1</sup> -c) 3.2 x 10<sup>-1</sup> -d) 3.8 x 10<sup>-1</sup> +e) 4.5 x 10<sup>-1</sup> ===3=== {<!--a14HeatTransfer_specifHeatConduct_2-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.82 kg is filled with 0.11 kg of water. What fraction of the heat went into the aluminum? } -a) 3.8 x 10<sup>-1</sup> -b) 4.4 x 10<sup>-1</sup> -c) 5.2 x 10<sup>-1</sup> +d) 6.2 x 10<sup>-1</sup> -e) 7.3 x 10<sup>-1</sup> ===4=== {<!--a14HeatTransfer_specifHeatConduct_2-->{The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.68 kg is filled with 0.17 kg of water. What fraction of the heat went into the aluminum? } -a) 2.8 x 10<sup>-1</sup> -b) 3.3 x 10<sup>-1</sup> -c) 3.9 x 10<sup>-1</sup> +d) 4.6 x 10<sup>-1</sup> -e) 5.5 x 10<sup>-1</sup> ===5=== {<!--a14HeatTransfer_specifHeatConduct_2-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.99 kg is filled with 0.26 kg of water. What fraction of the heat went into the aluminum? } -a) 2.7 x 10<sup>-1</sup> -b) 3.2 x 10<sup>-1</sup> -c) 3.8 x 10<sup>-1</sup> +d) 4.5 x 10<sup>-1</sup> -e) 5.3 x 10<sup>-1</sup> ===6=== {<!--a14HeatTransfer_specifHeatConduct_2-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.95 kg is filled with 0.19 kg of water. What fraction of the heat went into the aluminum? } +a) 5.2 x 10<sup>-1</sup> -b) 6.1 x 10<sup>-1</sup> -c) 7.2 x 10<sup>-1</sup> -d) 8.5 x 10<sup>-1</sup> -e) 1 x 10<sup>0</sup> ===7=== {<!--a14HeatTransfer_specifHeatConduct_2-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.61 kg is filled with 0.21 kg of water. What fraction of the heat went into the aluminum? } -a) 3.3 x 10<sup>-1</sup> +b) 3.8 x 10<sup>-1</sup> -c) 4.5 x 10<sup>-1</sup> -d) 5.3 x 10<sup>-1</sup> -e) 6.3 x 10<sup>-1</sup> ===8=== {<!--a14HeatTransfer_specifHeatConduct_2-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.66 kg is filled with 0.11 kg of water. What fraction of the heat went into the aluminum? } -a) 3.4 x 10<sup>-1</sup> -b) 4.1 x 10<sup>-1</sup> -c) 4.8 x 10<sup>-1</sup> +d) 5.6 x 10<sup>-1</sup> -e) 6.6 x 10<sup>-1</sup> |

## a14HeatTransfer_specifHeatConduct_v1[edit]

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===2=== {<!--a14HeatTransfer_specifHeatConduct_3-->{The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.71 kg is filled with 0.19 kg of water. You are consulting for the flat earth society, a group of people who believe that the acceleration of gravity equals 9.8 m/s/s at all altitudes. Based on this assumption, from what height must the water and container be dropped to achieve the same change in temperature? (For comparison, Earth's radius is 6,371 kilometers) } +a) 5.43 x 10<sup>0</sup> km -b) 6.58 x 10<sup>0</sup> km -c) 7.97 x 10<sup>0</sup> km -d) 9.66 x 10<sup>0</sup> km -e) 1.17 x 10<sup>1</sup> km ===3=== {<!--a14HeatTransfer_specifHeatConduct_3-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.82 kg is filled with 0.11 kg of water. You are consulting for the flat earth society, a group of people who believe that the acceleration of gravity equals 9.8 m/s/s at all altitudes. Based on this assumption, from what height must the water and container be dropped to achieve the same change in temperature? (For comparison, Earth's radius is 6,371 kilometers) } -a) 4.68 x 10<sup>0</sup> km -b) 5.67 x 10<sup>0</sup> km -c) 6.87 x 10<sup>0</sup> km -d) 8.32 x 10<sup>0</sup> km +e) 1.01 x 10<sup>1</sup> km ===4=== {<!--a14HeatTransfer_specifHeatConduct_3-->{The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.68 kg is filled with 0.17 kg of water. You are consulting for the flat earth society, a group of people who believe that the acceleration of gravity equals 9.8 m/s/s at all altitudes. Based on this assumption, from what height must the water and container be dropped to achieve the same change in temperature? (For comparison, Earth's radius is 6,371 kilometers) } -a) 2.61 x 10<sup>0</sup> km -b) 3.16 x 10<sup>0</sup> km -c) 3.83 x 10<sup>0</sup> km -d) 4.64 x 10<sup>0</sup> km +e) 5.62 x 10<sup>0</sup> km ===5=== {<!--a14HeatTransfer_specifHeatConduct_3-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.99 kg is filled with 0.26 kg of water. You are consulting for the flat earth society, a group of people who believe that the acceleration of gravity equals 9.8 m/s/s at all altitudes. Based on this assumption, from what height must the water and container be dropped to achieve the same change in temperature? (For comparison, Earth's radius is 6,371 kilometers) } -a) 3.16 x 10<sup>0</sup> km +b) 3.83 x 10<sup>0</sup> km -c) 4.64 x 10<sup>0</sup> km -d) 5.62 x 10<sup>0</sup> km -e) 6.81 x 10<sup>0</sup> km ===6=== {<!--a14HeatTransfer_specifHeatConduct_3-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.95 kg is filled with 0.19 kg of water. You are consulting for the flat earth society, a group of people who believe that the acceleration of gravity equals 9.8 m/s/s at all altitudes. Based on this assumption, from what height must the water and container be dropped to achieve the same change in temperature? (For comparison, Earth's radius is 6,371 kilometers) } -a) 5.24 x 10<sup>0</sup> km +b) 6.35 x 10<sup>0</sup> km -c) 7.7 x 10<sup>0</sup> km -d) 9.32 x 10<sup>0</sup> km -e) 1.13 x 10<sup>1</sup> km ===7=== {<!--a14HeatTransfer_specifHeatConduct_3-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.61 kg is filled with 0.21 kg of water. You are consulting for the flat earth society, a group of people who believe that the acceleration of gravity equals 9.8 m/s/s at all altitudes. Based on this assumption, from what height must the water and container be dropped to achieve the same change in temperature? (For comparison, Earth's radius is 6,371 kilometers) } -a) 6.33 x 10<sup>0</sup> km -b) 7.66 x 10<sup>0</sup> km -c) 9.29 x 10<sup>0</sup> km -d) 1.13 x 10<sup>1</sup> km +e) 1.36 x 10<sup>1</sup> km ===8=== {<!--a14HeatTransfer_specifHeatConduct_3-->The specific heat of water and aluminum are 4186 and 900, respectively, where the units are J/kg/Celsius. An aluminum container of mass 0.66 kg is filled with 0.11 kg of water. You are consulting for the flat earth society, a group of people who believe that the acceleration of gravity equals 9.8 m/s/s at all altitudes. Based on this assumption, from what height must the water and container be dropped to achieve the same change in temperature? (For comparison, Earth's radius is 6,371 kilometers) } -a) 1.64 x 10<sup>0</sup> km -b) 1.99 x 10<sup>0</sup> km -c) 2.41 x 10<sup>0</sup> km +d) 2.92 x 10<sup>0</sup> km -e) 3.54 x 10<sup>0</sup> km |

## a14HeatTransfer_specifHeatConduct_v1[edit]

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===2=== {<!--a14HeatTransfer_specifHeatConduct_4-->A window is square, with a length of each side equal to 0.95 meters. The glass has a thickness of 13 mm. To decrease the heat loss, you reduce the size of the window by decreasing the length of each side by a factor of 1.59. You also increase the thickness of the glass by a factor of 2.84. If the inside and outside temperatures are unchanged, by what factor have you decreased the heat flow?. By what factor have you decreased the heat flow (assuming the same inside and outside temperatures).} +a) 7.18 x 10<sup>0</sup> unit -b) 8.7 x 10<sup>0</sup> unit -c) 1.05 x 10<sup>1</sup> unit -d) 1.28 x 10<sup>1</sup> unit -e) 1.55 x 10<sup>1</sup> unit ===3=== {<!--a14HeatTransfer_specifHeatConduct_4-->A window is square, with a length of each side equal to 0.81 meters. The glass has a thickness of 13 mm. To decrease the heat loss, you reduce the size of the window by decreasing the length of each side by a factor of 1.24. You also increase the thickness of the glass by a factor of 2.15. If the inside and outside temperatures are unchanged, by what factor have you decreased the heat flow?. By what factor have you decreased the heat flow (assuming the same inside and outside temperatures).} -a) 1.53 x 10<sup>0</sup> unit -b) 1.86 x 10<sup>0</sup> unit -c) 2.25 x 10<sup>0</sup> unit -d) 2.73 x 10<sup>0</sup> unit +e) 3.31 x 10<sup>0</sup> unit ===4=== {<!--a14HeatTransfer_specifHeatConduct_4-->A window is square, with a length of each side equal to 0.78 meters. The glass has a thickness of 11 mm. To decrease the heat loss, you reduce the size of the window by decreasing the length of each side by a factor of 1.31. You also increase the thickness of the glass by a factor of 2.97. If the inside and outside temperatures are unchanged, by what factor have you decreased the heat flow?. By what factor have you decreased the heat flow (assuming the same inside and outside temperatures).} -a) 2.37 x 10<sup>0</sup> unit -b) 2.87 x 10<sup>0</sup> unit -c) 3.47 x 10<sup>0</sup> unit -d) 4.21 x 10<sup>0</sup> unit +e) 5.1 x 10<sup>0</sup> unit ===5=== {<!--a14HeatTransfer_specifHeatConduct_4-->A window is square, with a length of each side equal to 0.79 meters. The glass has a thickness of 15 mm. To decrease the heat loss, you reduce the size of the window by decreasing the length of each side by a factor of 1.33. You also increase the thickness of the glass by a factor of 2.17. If the inside and outside temperatures are unchanged, by what factor have you decreased the heat flow?. By what factor have you decreased the heat flow (assuming the same inside and outside temperatures).} -a) 2.16 x 10<sup>0</sup> unit -b) 2.62 x 10<sup>0</sup> unit -c) 3.17 x 10<sup>0</sup> unit +d) 3.84 x 10<sup>0</sup> unit -e) 4.65 x 10<sup>0</sup> unit ===6=== {<!--a14HeatTransfer_specifHeatConduct_4-->A window is square, with a length of each side equal to 0.73 meters. The glass has a thickness of 16 mm. To decrease the heat loss, you reduce the size of the window by decreasing the length of each side by a factor of 1.27. You also increase the thickness of the glass by a factor of 2. If the inside and outside temperatures are unchanged, by what factor have you decreased the heat flow?. By what factor have you decreased the heat flow (assuming the same inside and outside temperatures).} -a) 1.5 x 10<sup>0</sup> unit -b) 1.81 x 10<sup>0</sup> unit -c) 2.2 x 10<sup>0</sup> unit -d) 2.66 x 10<sup>0</sup> unit +e) 3.23 x 10<sup>0</sup> unit ===7=== {<!--a14HeatTransfer_specifHeatConduct_4-->A window is square, with a length of each side equal to 0.93 meters. The glass has a thickness of 15 mm. To decrease the heat loss, you reduce the size of the window by decreasing the length of each side by a factor of 1.55. You also increase the thickness of the glass by a factor of 2.54. If the inside and outside temperatures are unchanged, by what factor have you decreased the heat flow?. By what factor have you decreased the heat flow (assuming the same inside and outside temperatures).} -a) 4.16 x 10<sup>0</sup> unit -b) 5.04 x 10<sup>0</sup> unit +c) 6.1 x 10<sup>0</sup> unit -d) 7.39 x 10<sup>0</sup> unit -e) 8.96 x 10<sup>0</sup> unit ===8=== {<!--a14HeatTransfer_specifHeatConduct_4-->A window is square, with a length of each side equal to 0.73 meters. The glass has a thickness of 14 mm. To decrease the heat loss, you reduce the size of the window by decreasing the length of each side by a factor of 1.45. You also increase the thickness of the glass by a factor of 2.4. If the inside and outside temperatures are unchanged, by what factor have you decreased the heat flow?. By what factor have you decreased the heat flow (assuming the same inside and outside temperatures).} +a) 5.05 x 10<sup>0</sup> unit -b) 6.11 x 10<sup>0</sup> unit -c) 7.41 x 10<sup>0</sup> unit -d) 8.97 x 10<sup>0</sup> unit -e) 1.09 x 10<sup>1</sup> unit |