Where order in variety we see,
And where, though all things differ, all agree.
- Alexander Pope
The most exciting phrase to hear in science, the one that heralds new discoveries, is not Eureka! (I found it!) but rather, "hmm.... that's funny...."
- Isaac Asimov
Specific Heat
related to seasonsTransfer of Heat
conductionStates of matter (phases)
convection
radiation
solidHeat of Fusion
melts/freezesliquid
evaporates/condensatesgas
melting/freezingHeat of Vaporization
vaporization/condensation
Summary of variables and units used so far
You need to know these! variable abbrev. unit formula Distance d m (meter) Mass m kg (kilogram) Time t s (second) Velocity v m/s d/t Acceleration a m/s2 change in d/change in t2 Force F N (Newton) = kg m/s2 F=ma Momentum p kg m/s mv Force F N (Newton) = kg m/s2 F=mv2 / r (centripetal) r = radius Gravity F (force) N G*m1*m2/d2 G = gravitational constant Work W J (N*m = kg m2/s2) W = F * d (due to height) W J W = mgh h = height Power watt = J / s Power = work/time Energy E Joule Energy = Power * time Kinetic Energy KE Joule 1/2mv2 Potential Energy PE=W Joule PE = Fd or mgh Efficiency work done / energy used Heat to raise temperature
watercal. calorie mass * change in T Heat to raise temperture
non watercal mass * sp. heat * change in T Temp conversion o C degrees Celsius o C = 5/9 (o F - 32) Temp conversion o F degrees Fahrenheit o F = 9/5 (o C + 32)