Chapter 8

Question 1

Define temperature.

A. Temperature is a measurement of the amount of heat energy in a body
B. Temperature is a measurement of the speed at which a body’s molecules vibrate
C. Temperature is a measurement of the volume of a body
D. Temperature is a measurement of the pressure exerted by a body

Answer 1

B

Question 2

Define heat.

A. Heat is a measure of the amount of thermal energy in a substance
B. Heat is a measure of the temperature of a substance
C. Heat is a measure of the quantity of internal vibrational energy in a substance
D. Heat is a measure of the pressure exerted by a substance

Answer 2

C

Question 3

What must be done to change the state of a substance?

A. Heat must be added or rejected
B. Pressure must be increased or decreased
C. Volume must be increased or decreased
D. Temperature must be increased or decreased

Answer 3

A

Question 4

Define latent heat.

A. Latent heat is the heat absorbed or released by a substance as its temperature changes
B. Latent heat is the heat required to raise the temperature of a substance by one degree Celsius
C. Latent heat is the heat which causes a change in state of a substance as it is added or extracted
D. Latent heat is the heat required to melt or freeze a substance

Answer 4

C

Question 5

Define sensible heat.

A. Sensible heat is the heat absorbed or released by a substance as its temperature changes
B. Sensible heat is the heat required to raise the temperature of a substance by one degree Celsius
C. Sensible heat is the heat added in which a thermometer will sense this increase in molecular motion and show the change in temperature
D. Sensible heat is the heat required to melt or freeze a substance

Answer 5

C

Question 6

Would specific heat be a form of latent heat or sensible heat?

A. Latent heat
B. Sensible heat

Answer 6

B

Question 7

Define convection relative to thermodynamics.

A. Convection is a mode of heat transfer that occurs in solids.
B. Convection is a mode of heat transfer that is applicable to fluids and gases.
C. Convection is a mode of heat transfer that occurs only at high temperatures.
D. Convection is a mode of heat transfer that is applicable to all states of matter.

Answer 7

B