Name: 
 

5.1 Quiz



Modified True/False
Indicate whether the statement is true or false.  If false, change the identified word or phrase to make the statement true.
 

 1. 

The transfer of heat through the motion of fluids such as air and water is conduction. _________________________

 

 2. 

Ice floats on water because it has a lower freezing point than water. _________________________

 

 3. 

Liquid molecules have more energy than solid molecules. _________________________

 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 4. 

A fluid is a form of matter that includes:
a.
solids only.
b.
liquids only.
c.
both liquids and solids.
d.
both liquids and gases.
 

 5. 

The temperature at which a solid changes to a liquid is called the:
a.
boiling point.
b.
melting point.
c.
condensation point.
d.
freezing point.
 

 6. 

In which phase of matter are molecules or atoms most restricted in their ability to move?
a.
Plasma
b.
Solid
c.
Liquid
d.
Gas
 

 7. 

The name for air that contains water vapor in equilibrium at a certain temperature is:
a.
evaporated.
b.
condensed.
c.
saturated.
d.
relative humidity.
 

 8. 

The factor most directly responsible for Earth’s atmospheric pressure is:
a.
gravity.
b.
intermolecular forces.
c.
bonding forces between molecules.
d.
the presence of argon in the air.
 

 9. 

The most abundant material in Earth’s atmosphere is:
a.
oxygen.
b.
nitrogen.
c.
carbon dioxide.
d.
hydrogen.
 

 10. 

The phase of matter in which atoms are free to move but don’t have enough energy to completely break bonds is:
a.
solid.
b.
liquid.
c.
gas.
d.
plasma.
 

 11. 

An applied force causes pressure that acts in all direction when the force is applied to:
a.
both liquids and solids.
b.
solids only.
c.
both liquids and gases.
d.
gases only.
 

 12. 

Which statement best describes intermolecular forces?
a.
Intermolecular forces are stronger than bonding forces.
b.
Intermolecular forces act within molecules.
c.
Intermolecular forces are only attractive.
d.
Intermolecular forces may be both attractive and repulsive.
 

 13. 

Intermolecular forces are completely overcome:
a.
in solids.
b.
in liquids.
c.
in gases.
d.
in all phases.
 

 14. 

Water has a lower melting point than iron because:
a.
water has more thermal energy.
b.
water has stronger intermolecular forces.
c.
water has weaker intermolecular forces.
d.
water has lower density than iron.
 

 15. 

When athletes exercise hard, their bodies sweat. On a breezy day, a sweating athlete will:
a.
feel cooler as the sweat evaporates.
b.
feel warmer as the sweat evaporates.
c.
feel cooler as the sweat condenses.
d.
be unaffected by the sweat.
 

 16. 

Heat is added slowly to a block of ice at 0ºC. While the ice is melting, the temperature of the block:
a.
remains the same.
b.
slowly increases.
c.
rapidly increases.
d.
slowly decreases.
 

 17. 

Ice floats in water because:
a.
its molecules are tightly packed.
b.
the density of liquid water is lower than solid ice.
c.
water below it remains at a temperature above 0ºC.
d.
liquid water expands as it freezes.
 

 18. 

When molecules change from liquid to gas at temperatures below the boiling point, the change is called:
a.
melting.
b.
freezing.
c.
evaporation.
d.
condensation.
 

 19. 

The diagram shows the transfer of heat due to the movement of air near a lake.

mc019-1-51.jpg

The name given to the type of heat transfer in the diagram is:
a.
natural conduction.
b.
natural convection.
c.
natural condensation.
d.
forced conduction.
 
 
A material cools from being a gas at a temperature at 160ºC to being a solid at a temperature of 20ºC. The diagram below represents a graph of the data for these changes.

nar002-1-51.jpg

Figure 5-1A
 

 20. 

In Figure 5-1A, the temperature at which the material is ALL solid is:
a.
40ºC
b.
70ºC
c.
100ºC
d.
120ºC
 

 21. 

Referring to Figure 5-1A, what is the physical state of the material at 70ºC?
a.
Solid
b.
Solid and liquid
c.
Liquid
d.
Liquid and gas
 

 22. 

As some gas molecules of a material condense to become a liquid, the average molecules of gas remaining are:
a.
closer together.
b.
faster moving.
c.
slower moving.
d.
unchanged.
 

 23. 

Which graph best represents the relationship between temperature of the air and the rate of evaporation of water?

mc023-1.jpg
a.
A
b.
B
c.
C
d.
D
 

Completion
Complete each statement.
 
 
Select the correct term to complete each sentence. There are extra terms in the list.

gravitationalintermolecularoxygen
nitrogenconductionconvection
liquidsolidbrittle
elasticcrystallineamorphous
equilibriumgasdensity
 

 24. 

Earth’s weather is created by gigantic ____________________ currents in the atmosphere.
 

 

 25. 

The most abundant gas in Earth’s atmosphere is ____________________.
 

 

 26. 

Tungsten has a higher boiling point than alcohol because tungsten has higher _________________________ forces than alcohol.
 

 

Short Answer
 

 27. 

Which forces are stronger, those bonding atoms together to form molecules or those acting to hold molecules together?
 

 28. 

What causes pressure?
 

Problem
 

 29. 

Below is a set of axes representing the altitude above Earth’s surface on the y-axis and the atmospheric pressure on the x-axis. Sketch a graph line representing the relationship between these two variables.

pr029-1-51.jpg
 

 30. 

The graph below was drawn using data recorded as water at -20ºC was heated to 100ºC. On the graph, use letters A, B, C, and D to label the arrows pointing to those phases or combination of phases represented from the list.
A. Only ice is present
B. Only liquid water is present
C. Ice and water are present
D. Steam and water are present

pr030-1-51.jpg
 

Essay
 

 31. 

Describe the properties of intermolecular forces.     
 

 32. 

Explain the difference between natural convection and forced convection.
 

 33. 

Explain the difference between boiling and evaporation.
 

Other
 

 34. 

The diagram below pictures a candle burning in a closed container. Using arrows to represent the direction of air movement, sketch the convection currents that would develop in the container as the candle continues to burn. Label warm air and cool air currents.

ot034-1.jpg
 



 
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