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38 Cards in this Set

  • Front
  • Back
the ability to do work or produce heat.
energy
stored energy
potential energy
energy in motion
kinetic energy
in any chemical reaction or physical process,energy can be converted from one form or another. but it is neither created nor destroyed
law of conservation of energy
energy stored in a substance because of its composition
chemical potential energy
energy that is in the process of flowing from a warmer object to a cooler object
heat
amount of heat required to raise the temperature of 1 g of pure water by 1 degree celcius
calorie
1 nutritional Calorie
kilocalorie
SI unit of heat and energy
joule
1 calorie is = ______ joules
4.184 joules
amount of heat required to raise the temperature of one gram of that substance by one degree celsius.
specific heat
the heat absorbed or released
q
specific heat
c
mass of the sample in grams
m
change in temperature in celsuis.

final temp-initial temp
delta t
heat equation
q=c x m x delta t
how close a measured value is to an accepted value
accuracy
refers to how close a series of measurements are to one another
precision
converting from a large # to a small # of units must _____
increase
time
second
length
meter
mass
kilogram
temperature
kelvin
density
d= m/v
volume
distance[density]/time

or l x w x h
zeros that are place holders are ____ significant
not
______ have an infinite # of significant figures
constants
when multiplying or dividing ,

-measurements with the _____ # of s.f determines the answer
least
when you and or subt
the measurement with the least amount ___ the decimal point determines the answer
past
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
absolute zero
kilo
10^3
hecto
10^2
deka
10^1
base unit
10^0
deci
10^-1
centi
10^-2
milli
10^-3
nano
10^-9