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General Science Review 6.2
Test Description: Changes of State
Instructions: Answer all questions to get your test result.
1) Which change of state does not require energy
A
melting
B
vaporization
C
condensing
D
sublimation
2) Which change of state requires energy
A
condensing
B
freezing
C
melting
D
deposition
3) At its freezing point, the particles of a liquid are moving so ________ that they begin _____________
A
quickly; to break free from their fixed positions
B
slowly; to form regular patterns
C
slowly; to break free from their fixed positions
D
quickly; to form regular patterns
4) The change of state from liquid to gas happens at a substances
A
boiling point
B
melting point
C
condensing point
D
freezing point
5) At a substances melting point, __________ doesn't change because all energy is going towards changing the ______ to liquid
A
temperature; gas
B
kinetic energy; solid
C
temperature; solid
D
kinetic energy; gas
6) Evaporation is __________ that occurs ____________________
A
condensation; throughout the liquid
B
condensation; only at the surface of a liquid
C
vaporization; throughout the liquid
D
vaporization; only at the surface of a liquid
7) Boiling is __________ that occurs ____________________
A
condensation; only at the surface of a liquid
B
vaporization; throughout the liquid
C
vaporization; only at the surface of a liquid
D
condensation; throughout the liquid
8) During sublimation particles of a _________ do not pass through the ________ state
A
gas; liquid
B
solid; liquid
C
liquid; gas
D
liquid; solid
9) Deposition is the change in state from
A
liquid to solid
B
solid to liquid
C
solid to gas
D
gas to solid
10) Why does evaporation of sweat cool your body off on a warm day?
A
It releases energy when a liquid changes to a gas
B
It releases energy when a liquid changes to a solid
C
It takes energy to change a liquid to a gas
D
It takes energy to change a liquid to a solid
*select an answer for all questions
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