Test 4: Review C Flashcards
Which temperature scale has the smallest sized degrees?
A) Fahrenheit
B) Celsius
C) Kelvin
D) None of these
A) Fahrenheit
A substance with a high thermal inertia has a high
A) temperature, in many cases.
B) heat conductivity.
C) specific heat capacity.
D) energy content.
C) specific heat capacity.
Materials composed of molecules that absorb large amounts of energy in the form of internal vibrations and rotations have
A) low specific heats.
B) high specific heats.
C) None of these
B) high specific heats.
If the specific heat capacity of water were lower than it is, a nice hot bath would be a
A) shorter experience.
B) longer experience.
C) same regardless of water’s specific heat capacity.
A) shorter experience.
If you measure the width of an outdoor barn with a steel tape on a very cold day, your measured width will be
A) a bit short.
B) a bit long.
C) the same as on an average-temperature day.
B) a bit long.
Which of these is correct?
A) a piece of solid iron floats in molten iron.
B) a piece of solid aluminum floats in molten aluminum.
C) a piece of ice floats in water.
D) All of these
E) None of these
C) a piece of ice floats in water.
When ice floats in water, a small part of it extends above the surface. Interestingly, the volume of ice that extends above the surface is equal to the volume of the
A) water the ice displaces.
B) vast number of open spaces in all the hexagonal ice crystals.
C) both of these
D) neither of these
B) vast number of open spaces in all the hexagonal ice crystals.
The air in your room is composed of molecules that have
A) nearly identical speeds.
B) a wide variety of speeds.
C) no speeds worth mentioning.
B) a wide variety of speeds.
Place a 1-kilogram block of iron at 40°C into 1 kilogram of water at 20°C and the final temperature of the two becomes
A) less than 30°C.
B) at or about 30°C.
C) more than 30°C.
A) less than 30°C.
White-hot sparks from a 4th-of-July-type sparkler that strike your skin have relatively
A) high temperatures.
B) few molecules per spark.
C) low transfer of energy.
D) All of these
E) None of these
D) All of these
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
A) aluminum.
B) iron.
C) need more information
B) iron.
The fact that gasoline overflows a full tank on a hot day is evidence that
A) gasoline expands more with increasing temperature than its tank.
B) the tank contracts while gasoline expands with temperature.
C) both of these
D) neither of these
A) gasoline expands more with increasing temperature than its tank.
If air were a better conductor, at nighttime Earth would be
A) considerably colder.
B) considerably warmer.
C) not appreciably different in temperature.
B) considerably warmer.
Molecules in a region of expanding air more often collide with neighboring molecules that are
A) approaching.
B) receding.
C) nearly out of range.
B) receding.
Steam that issues from a pressure cooker
A) is invisible.
B) cools as it expands.
C) both of these
D) neither of these
C) both of these
