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* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
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 Write your response here: 2. Which of the following produces or transfers heat? A. light B. friction C. conduction D. all of these Write your response here: 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. Write your response here: 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 Write your response here: 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 Write your response here: 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. Write your response here: 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 Write your response here: 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 Write your response here: 10. In the flashlight above, electrical energy is converted into A. sound energy. B. chemical energy. C. mechanical energy. D. light energy. Write your response here: 11. _______ energy is defined as stored energy. A. Kinetic B. Potential C. Contained D. Dynamic Write your response here: 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 Write your response here: 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. Write your response here: 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. Write your response here: 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. Write your response here: 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. Write your response here: 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 Write your response here: 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. Write your response here: 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. Write your response here: 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. Write your response here: 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 Write your response here: 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 Write your response here: 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.