6.Which phase changes require an increase in energy
A.Freezing and condensation
B.Melting and freezing
C.Condensation and vaporization
D.Melting and vaporization
7.Which phase changes require an overall energy loss?
A.Condensation and vaporization
B.Melting and vaporization
C.Melting and freezing
D.Freezing and condensation
8.Water is heated on a stove until steam is given off. What phase change is this?
A.Freezing
B.melting
C.condensation
D.vaporization
9.Adding energy to a substance makes it particles move ______________.
A.faster
B.slower
C.The same
D.none of the above
10.When you place a pot of water on the stove and heat the water up, you notice that bubbles form throughout. What phase change is the water undergoing?
A.freezing
B.condensation
C.evaporation
D.boiling
11.What happens to the speed in which particles move when the change from a liquid to a solid?
A.none of these
B.the same
C.Particles speed decreases
D.Particles speed increases
12.The following occurs when heat energy is removed: Gas ---(A)--> Liquid ---(B)---> Solid What would be the phase changes for A and B respectfully?
A.Melting, Condensation
B.Condensation, Melting
C.Condensation, Freezing
D.Melting, Evaporating
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