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Energy Transfer
1. What is the transfer of heat through a solid as a result of molecular action called?
A. magnetism
B. radiation
C. conduction
D. convection
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2. Which of the following produces or transfers heat?
A. light
B. friction
C. conduction
D. all of these
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3. A small car is traveling at a speed of 60 mph on the highway. In the next lane, a
large passenger bus is traveling at the same speed.
Which of the following is true?
A. The car and the bus have potential energy, not kinetic energy.
B. The bus has more kinetic energy than the car.
C. The car has more kinetic energy than bus.
D. The car and bus have the same amount of kinetic energy.
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4. Inside the reactor of a power plant, uranium atoms are split apart in a controlled
chain reaction in order to give off _____ energy. This energy is then used to boil
water in the core of the reactor.
A. chemical
B. mechanical
C. heat
D. light
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5. What is the correct energy conversion sequence of a gasoline engine?
A. heat energy
mechanical energy
light energy
B. chemical energy
light energy
mechanical energy
C. chemical energy
heat energy
mechanical energy
D. mechanical energy
heat energy
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chemical energy
6. What is convection?
A. A coastal breeze blowing from cool land to warmer sea.
B. When fog is produced as warm, humid air moves across cold ground or water
and cools below its dewpoint.
C. The transfer of heat in a fluid or gas that happens when the substance warms,
expands, and rises.
D. The process that occurs in subfreezing air when water vapor changes directly
into ice without first becoming a liquid.
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7. To see if it is raining, Noureen does not have to go outside. She just looks
through a glass window. What makes this possible?
A. refraction of light
B. absorption of light
C. scattering of light
D. transmission of light
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8. When light reaches an opaque material, resulting in the reflection of certain
wavelengths of light by the material, this is an example of
A. refraction of light.
B. scattering of light.
C. transmitting of light.
D. production of light.
9. The law of _______ of energy states that energy cannot be created or destroyed.
A. stability
B. conservation
C. transformation
D. absorption
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10.
In the flashlight above, electrical energy is converted into
A. sound energy.
B. chemical energy.
C. mechanical energy.
D. light energy.
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11. _______ energy is defined as stored energy.
A. Kinetic
B. Potential
C. Contained
D. Dynamic
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12. A stone held above the ground has potential energy. When the stone is dropped,
potential energy is converted to _________ energy.
A. thermal
B. kinetic
C. chemical
D. electrical
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13. When light hits the water droplets in a cloud, the cloud appears white. The light
waves are being:
A. absorbed.
B. scattered.
C. consolidated.
D. intensified.
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14. Which of the following is an example of kinetic energy being converted to
potential energy?
A. The cord of a bow-and-arrow is released, propelling the arrow forward.
B. At an ice rink, an ice skater gives another ice skater a gentle push.
C. A bike rider stops pedaling and lets his bicycle coast up a hill.
D. On a factory assembly line, boxes slide down a ramp.
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15.
An experiment is performed in which an ice cube is placed in room-temperature
water. The graph shows the temperature of the water before the ice cube is
added and then the change in temperature of the water over the next eleven
minutes. What is the graph above describing?
A. The disappearance of heat energy from the ice cubes.
B. The time it takes all heat energy to transfer across water.
C. The amount of heat energy it takes to keep water the same temperature.
D. The transfer in heat energy from the room-temperature water to the ice cube.
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16. Which of the following is an example of transmission of light?
A. Light passes through a glass of water.
B. A visor blocks sunlight from reaching a person's eyes.
C. Light reflects off of a chrome bumper.
D. Light energy is absorbed by a dark-colored t-shirt.
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17. The electric pencil sharpener in Mrs. Brown's classroom gets very warm on days
when many students need to sharpen their pencils.
Choose the form of energy to fill in the blank in the energy conversion diagram
below.
Electrical Energy
____________________
Heat Energy
A. Light Energy
B. Chemical Energy
C. Mechanical Energy
D. Nuclear Energy
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18. Currently, solar panels are not very efficient at converting solar energy into
electricity on a large scale. However, solar panels can cheaply and effectively be
used to power small devices, such as calculators and watches. How does this
small-scale use of solar panels address environmental issues?
A. It increases the amount of soil erosion taking place in desert areas.
B. It decreases the depletion of resources used to make batteries.
C. It decreases the amount of air pollution emitted by small devices such as
calculators.
D. It increases the total energy consumption of a community.
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19. Which of the following is a true statement about heat transfer?
A. Heat is NOT related to temperature differences.
B. Heat NEVER travels in a similar pattern.
C. Heat ALWAYS flows from cooler objects to warmer objects.
D. Heat ALWAYS flows from warmer objects to cooler objects.
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20. During the opening scene of a play, the stage begins to fill with a cloud of
smoke. Then, a blue light from above the stage is shined down into the cloud.
How will the molecules in the cloud affect the light?
A. All of the blue light will be reflected back towards its source.
B. The blue light will not be affected at all.
C. The blue light will pass through the cloud without interruption.
D. The blue light will scatter in all different directions.
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21. Which of the following alternative energy sources could lead to soil nutrient
depletion?
A. biomass
B. solar power
C. wind turbines
D. hydroelectric power
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22. Acid rain is mainly caused by the emission of sulfur and nitrogen compounds into
the atmosphere. When acid rain falls into a body of fresh water, the acid rain
decreases the water's pH. This can disturb the balance of ecosystems found in
and around the body of water. Using which of the following energy sources would
best help to address the acid rain problem?
A. wind energy
B. coal
C. biomass
D. petroleum
23.
The picture above shows a metal bar above a fire. The fire is directly below point
C on the metal bar. After two minutes above the fire, which point on the metal
rod will be the hottest?
A. X
B. C
C. Z
D. Y
24. The device shown in the picture is used by electric utility power stations to
produce electrical energy from _____ energy.
A. light
B. mechanical
C. sound
D. solar
25. ______________ is one of the few alternative energy sources that cause air
pollution.
A. Wind
B. Solar energy
C. Biomass
D. Geothermal power
26. Before a ball rolls down a hill, it has gravitational potential energy. Before a
rubber ball bounces away from a surface, it has elastic potential energy.
From the list below, select the type of potential energy that allows you to throw a
ball.
A. chemical potential energy
B. elastic potential energy
C. gravitational potential energy
D. human potential energy
27. What is radiation?
A. The flow of heat as a result of nuclear fusion
B. The percentage of the amount of water vapor in the air compared to the
amount needed to saturate it at a given temperature and pressure
C. The flow of energy in the form of rays or waves, which does not need a
material medium to transfer heat
D. The bending of light rays as they pass from one medium to another
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28. Which of the following produces heat?
A. photosynthesis
B. sound energy
C. magnetism
D. friction
29.What kind of energy do the objects shown in the picture use to make electricity?
A. solar
B. chemical
C. wind
D. geothermal
30. _______ energy is defined as the energy of motion.
A. Potential
B. Dynamic
C. Kinetic
D. Chemical
31. The diagram below shows the behavior of light waves reacting to a rough
surface.
Which process best describes what is happening?
A. interference
B. scattering
C. transmission
D. absorption
32.
Look at the diagram above. Which arrow shows the direction that heat would
travel between the jars of water?
A. None of the arrows shows the direction that heat would travel.
B. Arrow B
C. Arrow C
D. Arrow A
33. Hydroelectric power was once a very promising alternative energy source. In
recent years, however, it has come under criticism. Why?
A. The environmental consequences are quite high.
B. It is a very expensive method of generating electricity.
C. It did not generate as much electricity as was hoped.
D. The source of energy is non-renewable.