final 3

If the specific heat capacity of water were lower than it is, ponds in the cold of winter would be

more likely to freeze(A)

Place a 1-kg block of iron at 40 degrees celsius into a kilogram of water at 20 degrees celsius and the final temperature of the two becomes

(A) less than 30 degrees celsius.

The reason the sun's radiant energy is of shorter wavelengths than the Earth's is because the sun

(B) has a higher temperature than earth

Metals are both good heat conductors and also good electrical conductors because of the

(B) looseness of outer electrons in metal atoms.

When ice floats in water, a small part of the ice extends above the surface of the water that is equal to the volume of the

(B) vast number of open spaces in the hexagonal ice crystals.

If an object radiates more energy than it absorbs, it's

(C) Both thermal energy decreases and temperature decreases.

A substance can absorb heat energy by the process of

(D) Conduction, Convection, and Radiation

Energy transfer by convection is primarily restricted to

(D) Fluids

A water filled cup held in a flame will not catch fire. This is because

(D) the paper cup cannot become appreciably hotter than the water it contains.

At the same temperature, which moves with the greater speed in the air?

Very light molecules(A)

The pupil of your eye is

a net absorber of radiant energy(A)

Objects that radiate relatively well,

absorb radiation relatively well(A)

Pour a liter of water at 40*C into a liter of water at 20*C and the final temperature of the two becomes

at or about 30*C(B)

When a volume of air is compressed, its temperature

increases(A)

A good heat conductor is a

poor insulator(A)

Hydrogen and oxygen molecules in a sample gas have the same temperature. This means the hydrogen molecules, on average, have the

same kinetic energy, but more speed(D)

Your feet feel warmer on a rug than on a tile floor because

the rug is a better insulator than tile(B)

The higher the temperature of an object, the shorter

the wavelength(B)