chapter 15-16
fluids
energy transfers by convention is primarily restricted to
looseness of outer electrons in metal atoms
metals are good conductors of both heat and electricity due to
warming and cooling
newtons third law of cooling applies to objects undergoing
Kinetic Energy
temperature is most closely related to molecular
emitted by earth
terrestrial radiation is
radiation
the form of heat transfer that doesn't depend on a medium is
low septic heat capacity
a substance that cools down faster than others has a
low specific heat capacity
a substance that heats up relatively quickly has a
Celsius and kelvin
which temperature scales have equal sized degrees
slows heat flow
in practice a good insulator
a poor insulator
a good heat conductor is
good emitter of radiation
a good reflected of radiation is a
cold room
a red hot piece of coals will cool quicker in a
cool
a region of expanding air tends to
iron
aluminum has a higher specific heat capacity than iron. this means that for equal masses of aluminum and iron, the metal that heats more quickly when the same amount of heat is applied
4 celsius
before ice can from on a lake, all the water in the lake must bee cooled to
higher temperature, but less internal energy
compared to a giant iceberg, a hot cup of coffee has
water expanding when freezing
during a very cold winter, water pipes sometimes burst due to
temperature to an object with a lower temperature
heat energy travels from an object with a high
surface of bodies of water
ice tends to form first at
decreases
if a pizza radiates more energy than it absorbs, its temperature
liquids
in most cases, which expands more for comparable changes in temperature
absorb radiation relatively well
objects that radiate relatively well
is a poorer conductor
on a cold day your feet feel warmer on a rug, than on a tile floor because a rug
long time in changing temperature
one of waters interesting thermal properties is that when heated it takes a relatively
decreased density
open spaces in ice crystals contribute to
low conductivity of the coals
the reason you can walk barefoot on red hot coals of wood without burning your feet daily involves
little energy to you in spite of their high temperature
the white-hot spars from a 4th of July type sparkler that strike you skin transfer
the dough feels hotter than the tomato sauce
tomatoes have higher specific heat cavity than dough. this means that when you bite into a hot pizza
copper expands more than iron
when a bimetallic bar made of copper and iron stripes is heated, the bar bends toward the iron strip because
increases
when a volume of air is compressed, air temperature
larger
when an iron ring is heated, the hold becomes
expansion
when most substances are heated, molecules inside move faster and take up more space resulting in thermal
from your finger to the ice
when you touch a cold piece of ice with your finger, energy flows.
from the potato to your finger
when you touch a hot potato with your finger, energy flows.
kelvin
which temperature has the smallest sized degree
