Download Heat transfer - Norwell Public Schools

Heat transfer
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
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1. Air has pressure because
a. the stratosphere is thick.
b. air has mass.
c. wind moves the air.
d. temperature warms the air.
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2. The less mass in a given volume of air, the
a. more the air weighs.
b. greater the air pressure.
c. more dense the air.
d. less dense the air.
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3. The air pressure acting on the roof of your house
a. comes from the air within a few feet of your rooftop.
b. is much greater on top of the roof than below it.
c. comes from all the air above your roof.
d. is much greater underneath your roof than on top of it.
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4. As you rise upwards in the atmosphere, air pressure
a. increases.
b. decreases.
c. doesn’t change.
d. first increases, then decreases.
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5. Most of the energy that heats Earth’s atmosphere is
a. visible light.
b. ultraviolet light.
c. blue light.
d. infrared radiation.
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6. Heat transfer between two substances that are in contact is called
a. conduction.
b. thermal energy.
c. convection.
d. radiation.
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7.
Heat from the sun reaches you by
a. conduction.
b. light emission.
c. convection.
d. radiation.
8. Most of the heating of the troposphere comes from
a. conduction.
.b condensation.
convection.
c.
d. radiation.
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9. Convection takes place because
a. warm air is more dense than humid air.
b. warm and cold air have the same density.
c. cold air is less dense than warm air.
d. cold air is more dense than warm air.
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10. Winds are caused by differences in
a. precipitation.
b. humidity.
c. air pressure.
d. turbulence.
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11. Cool air tends to
a. be less dense and flow over warm air.
b. be lifted up by more dense warm air.
c. be more dense and flow under warm air.
d. mix easily with warm air masses.
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12. Local winds differ from global winds because they
a. are caused by unequal heating within a small area.
b. are caused by differences in cloud cover.
c. are due to unequal rainfall.
d. are not influenced by air masses.
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13. Land breezes occur because
a. land cools off faster than water.
b. land cools off more slowly than water.
c. land heats up faster than water.
d. land heats up more slowly than water.
____
14. Global winds generally
a. are not influenced by heating of Earth’s surface.
b. are unpredictable.
c. change directions from day to day.
d. blow from specific directions over long distances.
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15. Earth’s rotation makes global winds curve. This is called the
a. convection effect.
b. global effect.
c. Coriolis effect.
d. rotational effect.
____
16. When a rapidly moving cold air mass overtakes a slow-moving warm air mass, the result is a(n)
a. cold front.
b. occluded front.
c. warm front.
d. stationary front.
____
17. When a warm air mass overtakes a cold air mass, it forms a(n)
a. occluded front.
b. warm front.
c. stationary front.
d. cold front.
____
18. The prevailing westerlies, the major wind belts over the continental United States, generally push air masses from
a. east to west.
b. west to east.
c. north to south.
d. south to north.
____
19. What is the primary energy source that drives all weather events, including precipitation, hurricanes and
tornados?
a. the Sun
c. Earth’s gravity
b. The Moon
d. Earth’s rotation
____
20. When air near the ground is warmed by sunlight, which of the following occurs?
a. The warm air radiates and becomes cool
c. The warm air expands and rises, resulting
again.
in convection.
b. The warm air evaporates into the cooler air. d. The warm air loses its ability to hold water
and precipitates.
____
21. Which statement best describes the relationship between the total amount of water vapor the atmosphere can
hold and the temperature of the atmosphere.
a. The amount of water vapor is not related to c. The amount of water vapor increases as the
the atmospheric temperature.
atmospheric temperature decreases.
b. The amount of water vapor increases as the d. The amount of water vapor decreases as the
atmospheric temperature increases.
atmospheric temperature increases.
____
22. The ocean water near the equator absorbs more heat throughout the year than ocean water near the North Pole.
Which of the following BEST explains this difference.
a. The equator is closer to the Sun.
c. The equator receives more direct sunlight.
b. The equator has higher sea levels.
d. The equator rotates more quickly on Earth’s
axis.
____
23. A student in a laboratory transfers a beaker containing a hot solution from the lab table to a cool water bath.
Which of the following parts of the system experiences an increase in heat energy?
a. beaker
c. solution
b. lab table
d. water bath
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24. A pot of cold water was heated on a stove until the water boiled. Which of the following BEST explains why the
water was able to boil.
a.
The hot stove absorbed cold from the pot.
c.
The hot stove gave off heat to the
surrounding air.
b. The cold water absorbed heat from the pot. d. The cold water gave off cold to the
surrounding air.
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25. A teacher put one test tube of 50°C liquid and one test tube of 10°C liquid into a 20°C water bath, as shown in the
diagram below.
Which of the following diagrams best represents the directions that heat will move when the test tubes are placed into the
water bath?
A.
B.
C.
D.
26. The diagram below shows how a change in temperature affects the physical state of a substance. Each of the labeled points
represents the same substance at a different temperature.
Which point represents the substance in the physical state with the particles moving the least?
A. Point W
B. Point X
C. Point Y
D. Point Z
_____ 27. Four different-colored blocks are placed outside in bright sunlight. The blocks are identical except for color. The
diagram below shows the amount of light reflected from each block.
Which block will increase in temperature most rapidly?
A. Block 1
B. Block 2
C. Block 3
D Block 4
28. During an investigation, Steven filled two cups with the same amount of water and placed them in a 20°C
room for 30 minutes. Cup 1 was filled with 5°C water. Cup 2 was filled with 35°C water. The diagram below shows
the temperatures of the cups at the beginning of the investigation.
Which of the following graphs shows how the temperatures of the two cups of water most likely changed over 30
minutes?
a.
b.
c.
d.
Answer Sheet- Heat Transfer
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