Chapter 22

Winds and weather patterns are good examples of _________currents

Convection

A good absorber of radiation is

a good emitter of radiation

a good reflector of radiation is

a poor absorber of radiation

Heat transfer by means of particles moving from place to place is called

convection

The reason sea breezes are usually from sea toward the land during the day is that

cool air high over the ocean flows downward

If a volume of air is warmed it expands. if a volume of air expands it

cools

heat transfers by conduction occurs when

electrons bump into atoms and other electrons

A piece of paper wrapped around a thick metal bar will not ignite when touched with a lit match because

energy goes to the bar preventing fire in the paper

all objects with any temperature at all ________ energy

radiates

Heat travels from the sun to the earth by

radiation

Planet earth loses heat primarily by

radiation

The silver coating on the glass surfaces of a thermos bottle vacuum bottle reduces the amount of energy transferred by...

radiation

The transfer of energy that does Not require matter is

radiation

The reason light colored cloths help keep you cool in warm weather is that cloths of light color

reflect a lot of energy

Firewalkers who walk barefoot on red hot wooden coals depend on

woods poor conductivity

not a good conductor of heat

air

If you were caught in freezing weather with only a candle for heat you would be warmer in

an igloo

Heat transfer by means of electrons colliding with other electrons in a metal is

conduction

What cools at the faster rate a pot of boiling water left at the room at room temperature or a same size of lukewarm water left at the room temperature

boiling water

The lower part of the atmosphere is directly warmed

by absorption of terrestrial radiation

Energy transfer by convection is primarily restricted to

fluids

What is transferred to us by the sun by radiation

heat

in a florist's greenhouse glass acts as a one way valve letting

high energy light in a preventing low energy radiation out

The reason you can hold your fingers beside a candle flame without getting hurt is that...

hot air rises

Styrofoam plastic foam is a good heat

insulator

Materials that are poor conductors are

insulators

A cup of hot coffee will cool faster it..

is black

A piece of metal will feel colder than a piece of wood at the same temperature... WHY?

metal has a higher specific heat capacity than wood

The rate of cooling of an object is proportional the temperature difference between the object and its surroundings is

newtons law of cooling

Global warming by the greenhouse effect mostly results from the fact that an atmosphere with excess carbon dioxide is least transparent to

terrestrial radiation

Two pots are filled with boiling water. the pots are exactly the same size. but one pot is white and the other is black. what pot cools faster

the black pot

Newtons law of cooling says that the rate of cooling depends on

the temperature difference between the object and its surroundings