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