15 1 15 2 15 3 Heat 15

  • Slides: 21
Download presentation
15. 1

15. 1

15. 2

15. 2

15. 3

15. 3

Heat 15. 4

Heat 15. 4

15. 5

15. 5

15. 6

15. 6

15. 7

15. 7

15. 8

15. 8

15. 9

15. 9

15. 10

15. 10

. 15. 11

. 15. 11

-- Questions -MULTIPLE CHOICE. Choose the one alternative that best completes the statement or

-- Questions -MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 15. 12

1) If you stake out a plot of land with a steel tape on

1) If you stake out a plot of land with a steel tape on a very hot day, the amount of land you will have will be A) correct. B) too large. C) too small. 2) Before ice can form on a lake, all the water in the lake must be cooled to A) zero degrees C. B) 4 degrees C. 15. 13

3) If the specific heat of water were lower than it is, ponds in

3) If the specific heat of water were lower than it is, ponds in the cold of winter would be A) neither more nor less likely to freeze. B) less likely to freeze. C) more likely to freeze. 4) If glass expanded more than mercury, then the column of mercury in a mercury thermometer would rise when the temperature A) decreases. B) increases. C) neither of these. 15. 14

5) Which of the following contracts most when the temperature is decreased? Equal volumes

5) Which of the following contracts most when the temperature is decreased? Equal volumes of A) helium. B) water. C) wood. D) iron. E) all contract the same. 6) When an iron ring is heated, the hole becomes A) smaller. B) neither smaller nor larger. C) larger. 15. 15

7) Some molecules are able to absorb large amounts of energy in the form

7) Some molecules are able to absorb large amounts of energy in the form of internal vibrations and rotations. Materials composed of such molecules have A) low specific heats. B) high specific heats. 8) Which of the following expands most when the temperature is increased? Equal volumes of A) ice water. B) wood. C) helium. D) iron. E) All expand the same. 15. 16

9) When water at 4 degrees C is heated it expands. When water at

9) When water at 4 degrees C is heated it expands. When water at 4 degrees C is cooled, it A) expands. B) neither contracts nor expands. C) contracts. 10) Room temperature on the Kelvin scale is about A) 100 K. B) 300 K. C) 400 K. D) 200 K. E) more than 400 K. 15. 17

11) Ice tends to form at the A) surface of bodies of water. B)

11) Ice tends to form at the A) surface of bodies of water. B) bottom of bodies of water. 12) During a very cold winter, water pipes sometimes burst. The reason for this is A) the thawing process releases pressure on the pipes. B) water contracts when freezing. C) the ground contracts when colder, pulling pipes apart. D) water expands when freezing. E) none of these. 15. 18

13) Which of the following expands most when the temperature is lowered? Equal volumes

13) Which of the following expands most when the temperature is lowered? Equal volumes of A) water at 4 degrees C. B) helium. C) wood. D) iron. E) None expands when the temperature is lowered. 14) Between 0 degrees Celsius and 8 degrees Celsius a red-dyed-waterin-glass thermometer would A) always be wrong. B) explode. C) give ambiguous readings. D) be especially suitable. E) implode. 15. 19

-- Answers -MULTIPLE CHOICE. The one alternative that best completes the statement or answers

-- Answers -MULTIPLE CHOICE. The one alternative that best completes the statement or answers the question. 15. 20

Chapter 15 1) Answer: B 2) Answer: B 3) Answer: C 4) Answer: A

Chapter 15 1) Answer: B 2) Answer: B 3) Answer: C 4) Answer: A 5) Answer: A 6) Answer: C 7) Answer: B 8) Answer: C 9) Answer: A 10) Answer: B 11) Answer: A 12) Answer: D 13) Answer: A 14) Answer: C 15. 21

14 Heat Specific heat and Latent heat Heat14 Heat Specific heat and Latent heat Heat
14 Heat Specific heat and Latent heat Heat14 Heat Specific heat and Latent heat Heat
HEAT ENERGY HEAT Heat Energy What is HeatHEAT ENERGY HEAT Heat Energy What is Heat
Specific Heat HEAT SPECIFIC HEAT Specific heat PHASESpecific Heat HEAT SPECIFIC HEAT Specific heat PHASE
HEAT PIPE HEAT EXCHANGERS Introduction to Heat PipesHEAT PIPE HEAT EXCHANGERS Introduction to Heat Pipes
HEAT Definition of Heat Definition Heat is theHEAT Definition of Heat Definition Heat is the
Heat Temperature Heat Transfer Thermal Expansion Thermodynamics HeatHeat Temperature Heat Transfer Thermal Expansion Thermodynamics Heat
Heat vs Temperature Specific Heat Capacity Heat andHeat vs Temperature Specific Heat Capacity Heat and
HEAT 1 Heat cont Heat Consist of theHEAT 1 Heat cont Heat Consist of the
HEAT TRANSFER CONDUCTION HEAT TRANSFER gjv Recap HeatHEAT TRANSFER CONDUCTION HEAT TRANSFER gjv Recap Heat
Heat Stress Safety Heat Stress Safety Heat isHeat Stress Safety Heat Stress Safety Heat is
Heat Wave Medical Aspects DPHFW Heat wave HeatHeat Wave Medical Aspects DPHFW Heat wave Heat
Temperature and Heat Heat and Mechanical Work HeatTemperature and Heat Heat and Mechanical Work Heat
Heat Pumps In a heat engine heat isHeat Pumps In a heat engine heat is
Heat Temperature Heat Transfer Thermal Expansion Thermodynamics HeatHeat Temperature Heat Transfer Thermal Expansion Thermodynamics Heat
Heat Transfer Conduction Convection Radiation Heat Transfer HeatHeat Transfer Conduction Convection Radiation Heat Transfer Heat
Heat Capacity Heat In Heat into a systemHeat Capacity Heat In Heat into a system
Chapter 11 Heat Nature of Heat Heat isChapter 11 Heat Nature of Heat Heat is
Heat Engines Heat Engines First Law and HeatHeat Engines Heat Engines First Law and Heat
SPECIFIC HEAT CALORIMETRY HEAT Heat energy that isSPECIFIC HEAT CALORIMETRY HEAT Heat energy that is