Question 1 (Multiple Choice Worth 2 points)
When a liquid becomes a solid, this is called
freezing point
thermal point
boiling point
flash point
Question 2 (Multiple Choice Worth 2 points)
Which of the following statements about boiling points is true?
The boiling point is the same for all substances
The boiling point of a substance can be the same as the freezing
The boiling point of a substance is lower than its freezing point
The boiling point of a substance is higher than its freezing point
Question 3 (Multiple Choice Worth 2 points)
“Phase change” and “change of state”
are opposites
sometimes mean the same thing
are unrelated
are two terms for the same thing
Question 4 (Multiple Choice Worth 2 points)
Heat being added or taken away from a substance may cause
a change in chemical properties
a change in state
change in the boiling point
change in the freezing point
Question 5 (Multiple Choice Worth 2 points)
The change from a solid to a liquid state is called
melting.
evaporation.
condensation.
sublimation.
Question 6 (Multiple Choice Worth 2 points)
The boiling point is the temperature at which
a solid becomes a liquid
a liquid becomes a gas
a gas becomes a solid
a solid becomes a gas
Question 7 (Essay Worth 3 points)
Explain how changes in temperature affect the particle motion of a substance.