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38 Cards in this Set
- Front
- Back
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the ability to do work or produce heat.
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energy
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stored energy
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potential energy
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energy in motion
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kinetic energy
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in any chemical reaction or physical process,energy can be converted from one form or another. but it is neither created nor destroyed
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law of conservation of energy
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energy stored in a substance because of its composition
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chemical potential energy
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energy that is in the process of flowing from a warmer object to a cooler object
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heat
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amount of heat required to raise the temperature of 1 g of pure water by 1 degree celcius
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calorie
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1 nutritional Calorie
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kilocalorie
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SI unit of heat and energy
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joule
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1 calorie is = ______ joules
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4.184 joules
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amount of heat required to raise the temperature of one gram of that substance by one degree celsius.
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specific heat
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the heat absorbed or released
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q
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specific heat
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c
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mass of the sample in grams
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m
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change in temperature in celsuis.
final temp-initial temp |
delta t
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heat equation
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q=c x m x delta t
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how close a measured value is to an accepted value
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accuracy
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refers to how close a series of measurements are to one another
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precision
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converting from a large # to a small # of units must _____
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increase
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time
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second
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length
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meter
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mass
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kilogram
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temperature
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kelvin
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density
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d= m/v
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volume
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distance[density]/time
or l x w x h |
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zeros that are place holders are ____ significant
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not
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______ have an infinite # of significant figures
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constants
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when multiplying or dividing ,
-measurements with the _____ # of s.f determines the answer |
least
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when you and or subt
the measurement with the least amount ___ the decimal point determines the answer |
past
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the lowest temperature that is theoretically possible, at which the motion of particles that constitutes heat would be minimal. It is zero on the Kelvin scale
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absolute zero
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kilo
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10^3
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hecto
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10^2
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deka
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10^1
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base unit
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10^0
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deci
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10^-1
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centi
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10^-2
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milli
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10^-3
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nano
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10^-9
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