Flashcard Set Preview
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| 1 |
What is heat?
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Heat is a form of energy.Input of heat to a system usually results in an increase of temperature...
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| 2 |
What is temperature?
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Temperature is a measure of how hot or cold things are.It is an indication of how great the...
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| 3 |
What unit is heat measured in?
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It is a form of energy so it is measured in joules (J).
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| 4 |
What is temperature measured in?
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It is most commonly measured in degrees Celsius.
The Celsius and kelvin scales of temperature...
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| 5 |
What temperature does pure ice melt at?
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Pure ice melts at 0oC or 273K
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| 6 |
What temperature does pure water boil at?
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Pure water boils at 100oC or 373K
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| 7 |
How can you measure the heat put into (or taken out of) a system?
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It can be measured with a joule-meter or a combination of instruments, the readings of which...
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| 8 |
How do you measure the temperature of a substance?
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It is measured with a thermometer.
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| 9 |
What is a thermometer?
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An instrument that measures temperature>There are many different kinds of thermometer, their...
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| 10 |
Which way does heat flow?
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Heat always flows from hot areas to cold areas - never say heat always rises!!
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| 11 |
What affects how fast heat flows between two objects?
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The bigger the difference in temperature between the hot and cold object the faster the heat...
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| 12 |
How does temperature differ in a conductor and insulator?
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The temperature of an object made of a good conductor of heat tends to be the same throughout...
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| 13 |
What is a heat insulator?
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A material that does not allow heat energy to travel easily through it.
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| 14 |
What is a heat conductor?
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A material that allows heat energy to flow easily through itself.
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| 15 |
How does the colour and texture of an object affect how easily it gains or loses heat energy?
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Heat radiation is absorbed/emitted readily by dark, dull, rough surfaces and less easily by...
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| 16 |
What are the three methods by which heat travels?
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There are three methods of heat transfer: conduction, convection and radiation
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