chapter 15-16

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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


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