Temperature is most closely related to molecular
Kinetic energy.
electrical energy.
potential energy.
mechanical energy in general.
Which temperature scales have equal sized degrees?
Celsius and Kelvin.
Fahrenheit and Kelvin.
Fahrenheit and Celsius.
none of the above.
Which temperature scale has the smallest sized degrees?
Celsius
Farenheit
Kelvin
none of the above
A temperature difference of 10 Celsius degrees is also equal to a temperature difference of 10 on the
Kelvin Scale.
Fahrenheit Scale.
both of these
neither of these
Room temperature on the Kelvin scale is about
200 K.
400 K.
more thank 400 K.
100 K.
300 K.
When you touch a cold piece of ice with your finger, energy flows
from your finger to the ice.
from the ice to your finger.
actually, both ways.
When you touch a hot potato with your finger, energy flows
from the potato to your finger.
from your finger to the potato.
Heat energy travels from an object with a high
temperature to an object with a lower temperature.
internal energy to an object with a lower internal energy.
both of the above
Heat energy is measured in units of
calories.
joules.
both of these.
neither of these.
The amount of heat needed to raise the temperature of 1 gram of water by 1°C is
4.19 calories.
4.19 joules.
4.19 Calories.
Which unit represents the most energy?
joule
calorie
Calorie
all the same
Pour a liter of water at 40°C into a liter of water at 20°C and the final temperature of the two becomes
less than 30°C.
at or about 30°C.
more than 30°C.
A substance with a high thermal inertia (resistance to temperature change) has a high
specific heat capacity.
temperature, in many cases.
heat conductivity.
energy content.
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 is
aluminum.
iron.
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Tomatoes have a higher specific heat capacity than dough. This means that when you bite into a hot pizza
the dough feels hotter than the tomato sauce.
since sauce and dough are at the same temperature, neither feels hotter.
the tomato sauce feels hotter than the dough.
A substance that cools down faster than others has a
low specific heat capacity.
high specific heat capacity.
either of these
The fact that desert sand is very hot in the day and very cold at night is evidence that the specific heat capacity of sand is relatively
practically absent.
low.
high.
If the specific heat capacity of water were lower than it is, a nice hot bath would be a
longer experience.
shorter experience.
same regardless of water's specific heat capacity.
When most substances are heated, molecules inside move faster and take up more space, resulting in thermal
contraction.
heat.
bending.
expansion.
When an iron ring is heated, the hole becomes
larger.
neither smaller nor larger.
either smaller or larger, depending on the ring thickness.
smaller.
As a piece of metal with a hole in it cools, the diameter of the hole
decreases.
increases.
remains the same.
Metals are good conductors of both heat and electricity due to
both transferring energy easily.
looseness of outer electrons in metal atoms.
similar thermal and electrical conductive properties.
relatively high densities of metals.
high elasticity of metals.
A good heat conductor is
a poor insulator.
a good insulator.
Which of these are good conductors?
wood.
feathers.
snow.
all of the above.
On a cold day your feet feel warmer on a rug than on a tile floor because a rug
for the same mass has more internal energy than tile.
is usually warmer than tile.
is a poorer conductor.
all of the above
When you touch a nail stuck in ice, energy flows from
the ice to your hand.
your hand to the ice.
If a volume of air is warmed, it expands and tends to
warm.
cool.
When a volume of air is compressed, air temperature
The form of heat transfer that doesn't depend on a medium is
convection.
conduction.
radiation.
The higher the temperature of an object, the
makes no difference in the wavelengths it radiates
shorter the wavelengths it radiates.
longer the wavelengths it radiates.
If a pizza radiates more energy than it absorbs, its temperature
is unaffected.
Glass in a florist's greenhouse acts as a one-way valve in that it
lets light energy flow only in one direction.
is transparent only to lower-frequency waves.
cuts off unwanted radiation.
allows sun's light waves in and blocks waves with longer wavelength to exit.
