Conceptual Physics Chapter 15 Test Questions with
Complete Solutions
B) a wide variety of speeds. - Answer-1) 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.
/.A) translational motion. - Answer-2) The kind of molecular motion that mostly relates to
the temperature of a substance is
A) translational motion.
B) rotational motion.
C) vibrational motion.
D) all about equally
/.C) both of these - Answer-3) Translational motion is characterized by
A) motion that carries a molecule from one place to another.
B) the motion used in measuring temperature.
C) both of these
D) neither of these
/.A) kinetic energy. - Answer-4) Temperature is most closely related to molecular
A) kinetic energy.
B) potential energy.
C) electrical energy.
D) mechanical energy in general.
/.C) Celsius and Kelvin - Answer-5) Which temperature scales have equal sized
degrees?
A) Fahrenheit and Celsius
B) Fahrenheit and Kelvin
C) Celsius and Kelvin
D) none of the above
/.A) Fahrenheit - Answer-6) Which temperature scale has the smallest sized degrees?
A) Fahrenheit
B) Celsius
C) Kelvin
D) none of the above
/.B) Kelvin scale. - Answer-7) A temperature difference of 10 Celsius degrees is also
equal to a temperature difference of 10 on the
, A) Fahrenheit scale.
B) Kelvin scale.
C) both of these
D) neither of these
/.C) 300 K. - Answer-8) Room temperature on the Kelvin scale is about
A) 100 K.
B) 200 K.
C) 300 K.
D) 400 K.
E) more than 400 K.
/.A) thermal equilibrium. - Answer-9) The fact that a thermometer "takes its own
temperature" illustrates
A) thermal equilibrium.
B) energy conservation.
C) the difference between heat and internal energy.
D) the fact that molecules are constantly moving.
/.C) both the same - Answer-10) In which is the temperature greater?
A) boiling-hot tea in a cup
B) boiling-hot tea in a fire-engine pail
C) both the same
/.B) fire-engine pail of boiling-hot tea. - Answer-11) Internal energy is greater in a
A) cup of boiling-hot tea.
B) fire-engine pail of boiling-hot tea.
C) both the same
/.A) from your finger to the ice. - Answer-12) When you touch a cold piece of ice with
your finger, energy flows
A) from your finger to the ice.
B) from the ice to your finger.
C) actually, both ways.
/.B) from the potato to your finger. - Answer-13) When you touch a hot potato with your
finger, energy flows
A) from your finger to the potato.
B) from the potato to your finger.
C) actually, both ways.
/.B) higher temperature, but less internal energy. - Answer-14) Compared to a giant
iceberg, a hot cup of coffee has
A) more internal energy and higher temperature.
B) higher temperature, but less internal energy.
C) a greater specific heat and more internal energy.
Complete Solutions
B) a wide variety of speeds. - Answer-1) 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.
/.A) translational motion. - Answer-2) The kind of molecular motion that mostly relates to
the temperature of a substance is
A) translational motion.
B) rotational motion.
C) vibrational motion.
D) all about equally
/.C) both of these - Answer-3) Translational motion is characterized by
A) motion that carries a molecule from one place to another.
B) the motion used in measuring temperature.
C) both of these
D) neither of these
/.A) kinetic energy. - Answer-4) Temperature is most closely related to molecular
A) kinetic energy.
B) potential energy.
C) electrical energy.
D) mechanical energy in general.
/.C) Celsius and Kelvin - Answer-5) Which temperature scales have equal sized
degrees?
A) Fahrenheit and Celsius
B) Fahrenheit and Kelvin
C) Celsius and Kelvin
D) none of the above
/.A) Fahrenheit - Answer-6) Which temperature scale has the smallest sized degrees?
A) Fahrenheit
B) Celsius
C) Kelvin
D) none of the above
/.B) Kelvin scale. - Answer-7) A temperature difference of 10 Celsius degrees is also
equal to a temperature difference of 10 on the
, A) Fahrenheit scale.
B) Kelvin scale.
C) both of these
D) neither of these
/.C) 300 K. - Answer-8) Room temperature on the Kelvin scale is about
A) 100 K.
B) 200 K.
C) 300 K.
D) 400 K.
E) more than 400 K.
/.A) thermal equilibrium. - Answer-9) The fact that a thermometer "takes its own
temperature" illustrates
A) thermal equilibrium.
B) energy conservation.
C) the difference between heat and internal energy.
D) the fact that molecules are constantly moving.
/.C) both the same - Answer-10) In which is the temperature greater?
A) boiling-hot tea in a cup
B) boiling-hot tea in a fire-engine pail
C) both the same
/.B) fire-engine pail of boiling-hot tea. - Answer-11) Internal energy is greater in a
A) cup of boiling-hot tea.
B) fire-engine pail of boiling-hot tea.
C) both the same
/.A) from your finger to the ice. - Answer-12) When you touch a cold piece of ice with
your finger, energy flows
A) from your finger to the ice.
B) from the ice to your finger.
C) actually, both ways.
/.B) from the potato to your finger. - Answer-13) When you touch a hot potato with your
finger, energy flows
A) from your finger to the potato.
B) from the potato to your finger.
C) actually, both ways.
/.B) higher temperature, but less internal energy. - Answer-14) Compared to a giant
iceberg, a hot cup of coffee has
A) more internal energy and higher temperature.
B) higher temperature, but less internal energy.
C) a greater specific heat and more internal energy.
