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25 Cards in this Set
- Front
- Back
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What is the formula for transfer of heat energy?
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Heat gained or given off = Mass(g) x Change in Temp(C)x Specific Heat (c/g) C
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How do you convert from Celsius to Fahrenheit?
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Degrees Celsius = 5/9 (F - 32)
Check by using Allison song. |
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How do you convert from Fahrenheit to Celsius?
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Fahrenheit = (9/5 x C) + 32
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What happens when a substance is heated?
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It becomes less dense and expands.
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What happens when a substance is cooled?
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It becomes more dense and contracts.
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What is conduction?
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Heat energy is transferred from molecule to molecule. (Direct contact)
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What is convection?
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Moving heat by moving the molecules to different places.
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What is a convection current?
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In a pot, the water nearest to the burner heats up fastest. It expands and rises above the denser water above it. This continues.
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What is radiation?
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Energy is transferred through space by electromagnetic waves.
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What is thermal energy?
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The total kinetic energy of all the molecules in a substance.
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What is temperature?
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Temperature is the average kinetic energy in all the molecules of a substance.
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What is specific heat?
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The ability of a substance to absorb or lose heat energy.
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What is mass?
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The total amount of all vibrating molecules.
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What is matter?
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Something that has volume and mass.
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What is a molecule?
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Groups of atoms bonded together.
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Recite the Celsius Poem.
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30 is hot
20 is nice 10 is cold 0 is ice |
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True/False:
Heat always moves from a hot object to a cold object. |
True
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What is a calorie?
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The amount of energy needed to raise the temperature of 1 gram of water one degree Celsius.
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What is a kilo calorie?
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The amount of energy needed to raise the temperature of 1 kilogram of water one degree Celsius.
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What tool do you use to measure the average kinetic energy of a substance?
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Thermometer.
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What is the specific heat of water?
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1
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What is a conductor?
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Something that transfers heat well or quickly?
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What is an insulator?
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Something that slows down heat transfer.
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Does an insulator completely stop heat transfer?
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No.
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What is normal body temperature in Celsius?
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37 degrees
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