Problem 1RCQ Problem 2RCQ: Why does a penny become warmer when it is struck by a hammer? Problem 3RCQ: What are the temperatures for freezing water on the Celsius and Fahrenheit scales? What are the... Problem 4RCQ: Is the temperature of an object a measure of the total translational kinetic energy of the molecules... Problem 5RCQ: What is meant by the following statement? A thermometer measures its own temperature. Problem 6RCQ: What pressure would you expect in a rigid container of 0C gas if you cooled it by 273 Celsius... Problem 7RCQ: How much energy can be removed from a system at a temperature of 0K? Problem 8RCQ: When you touch a cold surface, does cold travel from the surface to your hand or does energy travel... Problem 9RCQ: a Distinguish between temperature and heat. b Distinguish between heat and thermal energy. Problem 10RCQ: What determines the direction of heat flow? Problem 11RCQ: Distinguish between a calorie and a Calorie, and between a calorie and a joule. Problem 12RCQ: How does the law of conservation of energy relate to the first law of thermodynamics? Problem 13RCQ Problem 14RCQ: How does the second law of thermodynamics relate to the direction of heat flow? Problem 15RCQ: Which warms up faster when heat is appliediron or silver? Problem 16RCQ: Does a substance that heats up quickly have a high or low specific heat capacity? Problem 17RCQ: How does that specific heat capacity of water compare with the specific heat capacities of other... Problem 18RCQ: Which generally expands more for an equal increase in temperature-solids or liquids? Problem 19RCQ Problem 20RCQ: Why does ice form at the surface of a pond instead of at the bottom? Problem 21RCQ: What is the role of loose electrons in heat conduction? Problem 22RCQ: Distinguish between a heat conductor and a heat insulator. Problem 23RCQ: Why is a barefoot fire walker able to walk safely on red-hot wooden coals? Problem 24RCQ: Why are such materials as wood, fur, and feathers and even snow good insulators? Problem 25RCQ: Describe how convection transfers heat. Problem 26RCQ: What happens to the temperature of air when it expands? Problem 27RCQ: Why does the direction of coastal winds change from day to night? Problem 28RCQ: a What exactly is radiant energy? b What is heat radiation? Problem 29RCQ: How does the frequency of radiant energy relate to the absolute temperature of the radiating source? Problem 30RCQ Problem 31TIS: What does it mean to say that energy becomes less useful when it is transformed? Problem 32TIS: What is the physicists term for the measure of energy dispersal? Problem 33TIS: Consider the decomposition of water (H2O) to form hydrogen (H2) and oxygen (O2). At room... Problem 34TIS: A deer is a more concentrated form of energy than the grass it feeds on. Does this imply that the... Problem 35TIS: Northeastern Canada and much of Europe receive about the same amount of sunlight per unit area. Why,... Problem 36TIS: Iceland, so named to discourage conquest by expanding empires, is not ice-covered like Greenland and... Problem 37TIS: Why does the presence of large bodies of water tend to moderate the climate of nearby land to make... Problem 43PC: Show that 5000cal is required to increase the temperature of 50g of water from 0C to 100C. The... Problem 44PC: Calculate the quantity of heat absorbed by 20g of water that warms from 30C to 90C. Problem 45PC: Show that a 100-m-long piece of copper wire will increase in length by about 5cm when its... Problem 46PC: A steel section of the Alaska pipeline was installed with a length of 65m at a temperature of 18C.... Problem 47TC Problem 48TC: The precise volume of water in a beaker depends on the temperature of the water. Rank from greatest... Problem 49TC: From best to worst, rank these materials as heat conductors: a copper wire, b snow, c a glass rod. Problem 50TC: From greatest to least, rank the frequencies of radiation of these emitters of radiant energy: a... Problem 51TS: Show that the final temperature of a mixture of 1kg of 30C water and 2kg of 60C water is 50C. Problem 52TS Problem 53TS: When 2kg of 40C iron nails are submerged in 2kg of 20C water, show that the final temperature of the... Problem 54TS: Show that the heats require to raise the temperature of a 1kg piece of copper from 0C to 100C is... Problem 55TS: Suppose the 1300-meter steel span of the Golden Gate Bridge had no expansion joints as in Figure... Problem 56TS: The steel Sutro Tower in San Francisco is 298meters tall on a 20C day. a Show that it would be... Problem 57TS: A steel section of the Alaska pipeline was installed with a length of 65m at a temperature of 18C.... Problem 58TS: Imagine people breathing on the length of a 40,000km-long steel pipe that forms a ring to smoothly... Problem 59TS: Show that when the thermal energy of a volume of 0C helium gas is halved, its temperature will be... Problem 60TS: Pounding a nail into wood makes the nail warmer. Consider a 5g steel nail 6cm long and a hammer that... Problem 61TE Problem 62TE: Which is greater an increase in temperature of 1C or an increase of 1F? Problem 63TE: A friend says that molecules in a constant-temperature mixture of gases have the same average speed.... Problem 64TE: What is the lowest temperature in nature in kelvins? In Celsius degrees? Problem 65TE: Will a volume of gas shrink or will it expand when colled? Problem 66TE: If a gas at 0C is cooled to 100C, by how much would its pressure decrease? Problem 67TE: What is the name given to "thermal energy in transit"? Problem 68TE: Instead of saying that a red-hot nail, it is correct to say it contains what? Problem 69TE: What is the general direction of the flow of thermal energy? What is the name of that flow? Problem 70TE: Which has the greatest amount of thermal energy: an ice-berg or a hot cup of tea? Explain. Problem 71TE: If 100joules of heat are added to a system that does no external work, by how much is the thermal... Problem 72TE: If 100joules of heat are added to a system that does 40joules of external work, by how much is the... Problem 73TE: Which law of thermodynamics relates to a the most probable in nature and b absolute zero? Problem 74TE Problem 75TE: For the same mass, which has the greater specific heat capacity: an object that cools quickly or an... Problem 76TE: Which undergoes a greater change in temperature when heat is applied: 1kg of water or 1kg of iron?... Problem 77TE: Why will watermelon stay cool for a longer time than sandwiches when both are removed from a cooler... Problem 78TE Problem 79TE: While camping in a tent on a cold night, which would keep you warmer: a 10kg iron brick or a 10kg... Problem 80TE: Why do the Hawaiian Islands and San Francisco not experience the temperature extremes common in most... Problem 81TE: An old method for breaking boulders was to put them into a hot fire and then douse them with cold... Problem 82TE: A metal ball is just able to pass through a metal ring. When the ball is heated, however, it will... Problem 83TE: After a machinist very quickly slips a hot, snugly fitting iron ring over a very cold brass... Problem 84TE: Why is it important to protect water pipes so that they don't freeze? Problem 85TE Problem 86TE: Cite an exception to the claim that all substances expand when heated. Problem 87TE: If there are any parcels of 4C water in a pond, in what part of the pond would they be located? Problem 88TE: If you hold one end of a nail against a piece of ice, the end in your hand soon becomes cold. Does... Problem 89TE: Which will cool your finger faster, touching a nail stuck in ice or touching the surface of ice?... Problem 90TE: Later we'll learn that electrical conductors such as copper conduct well due to "loose" electrons in... Problem 91TE: How does the buoyancy typical in fluids relate to the rising of warm parcels of air? Problem 92TE: When air is rapidly compressed, why does its temperature rise? Problem 93TE: Why is your hand cooled when you blow air through puckered lips rather than wide open lips? Problem 94TE: Why is Millies hand not burned when she holds it above the escape valve of a pressure cooker, as... Problem 95TE: The formula fT tells us that any object with any temperature T radiates energy at a wave frequency... Problem 96TE: If everything absorbs radiation, then why doesnt everything zoom upward in temperature? Problem 97TE Problem 98TE: Why do the pupils of eyes appear black? When do they appear red? Problem 99TE: Wrap part of a fur coat around a thermometer. Disuss whether or not the temperature rises. Problem 100TDI: In your room, there are tables, chairs, other people, and other things. Discuss which of these... Problem 101TDI: Discuss why you cant establish whether you are running a high temperature by touching your own... Problem 102TDI: If you drop a hot rock into a pail of water, the temperature of the rock and the water will change... Problem 103TDI: Visit a snow-covered cemetery and note that the snow does not slope upward against the gravestones... Problem 104TDI: Friends in your discussion group say that when you touch a piece of cold ice, your hand is cooled... Problem 105TDI Problem 106TDI Problem 1RAT: When scientists discuss kinetic energy per molecule, the concept being discussed is a temperature. b... Problem 2RAT Problem 3RAT: Your garage gets messier every day. In this case, entropy is a decreasing. b increasing. c holding... Problem 4RAT: A substance that heats up relatively quickly has a a high specific heat capacity. b low specific... Problem 5RAT: A bimetallic strip used in thermostats relies on the fact that different metals have different a... Problem 6RAT: Water at 4C will expand when it is a slightly cooled. b slightly warmed. c both cooled and warmed. d... Problem 7RAT: A fire walker walking barefoot across red-hot wooden coals depends on woods a good conduction. b... Problem 8RAT: Thermal convection is linked mostly to a radiant energy. b fluids. c insulators. d all of these Problem 9RAT: Which of these electromagnetic waves has the lowest frequency? a infrared. b visible. c ultraviolet.... Problem 10RAT: Compared with terrestrial radiation, the radiation from the Sun has a a longer wavelength. b a lower... format_list_bulleted