Review

Evaporation is a cooling process and condensation is

A warming process

If you take a shower in a steamy bathroom and then go to your bedroom to dry off, why will you feel colder in your bedroom?

Because water evaporates off of your skin, your skin will be cooled.

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

Metals, in general, are good heat conductors.

Evaporation

a change of phase from liquid to gas that takes place at the surface of a liquid

A good absorber of radiation is

a good emitter of radiation.

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

all of the above

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

all of the above

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

all of the above

Clouds form when warm air

all the above

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

an igloo

Food cooked in boiling water in the mountains cooks more slowly than cooked at sea level. If the temperature under the pot is increased, the food will cook

at same rate as before

If you want to cook boiled eggs while in the mountains, you should

boil the eggs for a longer time.

When snow forms, the air becomes warmer because

changing from a vapor to a solid is a process that gives off energy

formation of droplets of water on the outside of a cold soda can is a example of

condensation

When slow-moving molecules collide, some stick together. They...

condense

Melting snow

cools the surrounding air

Heat transfer by conduction in metals occurs when

electrons bump into atoms and other electrons.

Energy transfer by convection is primarily restricted to

fluids

When water freezes, it

gives off energy

Steam burns are more damaging than burns caused by boiling water because steam

has more energy per kilogram than boiling water.

Plastic foam is a good heat

insulator

A cup of hot coffee will cool faster if it

is black

At high altitudes, the boiling point of water

is lower

A liquid boils when

it turns to vapor at the bottom of or in the liquid.

Heat transfer by convection occurs when

large numbers of atoms move from place to place.

Infrared radiation is a form of

radiant energy

The metallic coating on the glass surfaces of a Thermos vacuum bottle reduces the amount of energy transferred by

radiation

The reason pressure cookers cook food faster is that they

raise the cooking temperature of the food.

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

reflect a lot of energy

To say that evaporation is a cooling process means that when evaporation occurs,

remaining liquid cools

Morning dew on the grass is a result of

slow-moving molecules condensing on the grass.

When heat is added to boiling water, the temperature of the boiling water

stays the same

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

the black pot

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

the boiling water

condensation

the changeing of gas to liquid

On a humid day, water condenses on the outside of a glass of ice water. This phenomenon occurs mainly because of

the saturation of cooled air.

Newton's law of cooling says that the rate of cooling depends on

the temperature difference between an object and its surroundings.

Pigs roll in the mud

to keep there skins wet so it can evaporate

Temperature is related to average kinetic energy of molecules

true

The cooling effect inside a refrigerator is produced by

vaporizing the refrigeration liquid

At night, a sea breeze results when

warm air over the shore rises and cooler air from the ocean takes its place.

When snow forms in clouds, the surrounding air

warms

Which will melt a bigger hole in a block of ice—a red-hot nail tossed on it or a red-hot piece of wood of the same mass and temperature?

wood

Firewalkers who walk barefoot on red-hot wooden coals depend on

woods poor conductivity