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Cards In This Set
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What are the temperatures for freeqing water on the Celsius and Fahrenheit scales? For boiling water?
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Freezing (0 degrees Celcius, 32 degrees Fahrenheit) Boiling (100 degrees Celcius, 212 degrees Fahrenheit)
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What is meant by "translational" kinetic energy?
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Motion from one place to another
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What is meant by the statement that a thermometer measures its own temperature?
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The thermometer measures an object when
in comes in thermal equilibrium with that object. So, the thermometer’s temperature is the same as the temperature it is trying to measure.
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Distinguish between temperature and heat
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Heat is the energy transferred from one object to another due to a temperature difference.
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What determines the direction of heat flow?
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Temperature difference
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Distinguish between a calorie and Calorie.
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Calorie = 1 kilo-calorie
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Which warms up faster when heat is applied-iron or silver?
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Silver
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Does a substance that cools off quickly have a high or a low specific heat capacity?
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Low
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Northeastern Canada and much of Europe receive about the same amount of sunlight per unit area. Why then is Europe generally warmer in the winter?
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Gulf-stream carries warm water to Europe.
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Why is the temperature fairly constant for land masses surrounded by large bodies of water?
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When it is hot, the water cools; and when it is cold, the water warms.
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Why does a bimetallic strip bend with changes in temperature?
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Because it is made of two different kinds of metals. One metal expands more than the other.
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When the temperature of ice-cold water is increased slightly, does it undergo a net expansion or a net contraction?
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Contraction (0-4 C), then expansion.
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Does "microscopic slush" in water tend to make it more dense or less dense?
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Less dense
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At what temperature do the combined effects of contraction and expansion produce the smallest volume for water?
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4 degrees.
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Why does ice form at the surface of a body of water instead of at the bottom?
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Because water at 0 degrees is not the most dense.
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