Name_______________________________________Date______________Hour______Table_____ Lesson One: Directions: Complete the concept map with the correct terms from the word bank. Each word is used only once. Chapter 4 PreAP WORD BANK o chemical energy o mechanical energy o sound energy o electric energy o nuclear energy o thermal energy o radiant energy o gravitational potential energy o kinetic energy o potential energy o energy carried by waves o combined kinetic and potential energy Name_______________________________________Date______________Hour______Table_____ Lesson One: Directions: On each line, write the term from the word bank that completes each sentence. Some terms may be used more than once or not at all. Word Bank Mechanical energy is the sum of (1.) ______________________ energy and kinetic o
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energy in a(n) (2.) ___________________ , which is a collection of interacting objects o
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or parts that act together as a whole. Everything outside a(n) o
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(3.) _______________________________ is part of the (4.) ___________________ . o
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For a baseball player, the baseball he or she is holding and the pitcher’s mound is o
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a(n) (5.) _____________________________________________________ ; however, o
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first base is part of the (6.) _________________________________________. atoms electric environment kinetic particles mass potential mechanical gravitational nuclear system thermal (7.) ___________________________________________ energy can make things move. The baseball held by the pitcher has (8.) ___________________________ energy. Everything is made up of (9.) _________________________________________________ . A baseball is made up of (10.) ________________________________________________________ . The potential energy of the ball is the attractive forces between the (11.) _____________________ that make up the baseball. The (12.) ______________________________________________ energy of the baseball is made up of all the particles that vibrate back and forth in place. The (13.) _______________________ energy of the baseball is the sum of the kinetic energy and (14.)_______________________________ energy of the particles that make up the baseball. What happens to the thermal energy of an object, such as the baseball, when the (15.) ___________________________ energy or the kinetic energy increases? When that happens, the (16.) ____________________________ energy increases as well. What happens when the (17.) ___________________________ energy and the kinetic energy increase? Because the (18.) ____________________________ energy is the sum of the kinetic energy and the (19.) __________________________ energy, the (20.) _________________________ energy increases in this situation. Name_______________________________________Date______________Hour______Table_____ Lesson Two Directions: On the line after each statement write TRUE if the statement is true. If the statement is not true, write the word(s) that could replace the underlined words to make the statement true. 1. The transformation of chemical energy to radiant and thermal energy when a flashlight is turned on is an example of the law of inefficiency. _____________________________________________ 2. An energy transfer occurs when the form of energy remains the same as it moves from one object to another. _____________________________________________________________ 3. A baseball bat striking a baseball and sending it toward left field is an example of energy transformation. ____________________________________________________________________ 4. Work only occurs if a force moves an object in the direction of the force. ______________________________________________________ 5. The scraping sound of a bike tire as the bicyclist pedals the bike is an example of mechanical energy transformed to sound energy and thermal energy. _________________________________________ 6. Energy transformations are inefficient and energy transfers are efficient. ______________________________________________________ 7. A car engine transforms energy and is an example of a closed system because it exchanges matter with the environment. ____________________________________________________________ 8. Radiant energy from the Sun is a nonrenewable energy source. _____________________________ 9. Solar energy can be transformed into thermal or electric energy. ___________________________ 10. Wind turbines turn a generator that transforms the potential energy of the wind into electric energy. _________________________________________________________________ 11. Hydroelectric power is a renewable energy resource. ___________________________________ 12. People are encouraged to use nonrenewable resources for their energy needs. ______________________________________________________ Name_______________________________________Date______________Hour______Table_____ Lesson Three Directions: Complete the concept map by choosing terms from the word bank and writing them in the correct Word Bank *conduction * radiation 1 *heat *temperature * expansion * convection *conductors *insulators 2 3 4 Compare: You hold a 65°C cup of cocoa. Your hand is 37°C and the outside air is 6°C. Describe the flow of thermal energy. 5 spaces. Not all terms are used. Name_______________________________________Date______________Hour______Table_____ Chapter Practice: Circle the best answer for each question. On the line before each question, record the page number where you found that answer. _______ 1. What type of energy does a statue _______ 6. Which form of energy relies on have? gravitational potential energy? A. electric energy A. fossil fuels B. mechanical energy B. geothermal C. sound energy C. hydroelectric D. thermal energy D. nuclear _______ 2. Which is the form of energy that _______ 7. In the picture, how does the cannot be stored? thermal energy definitely flow?
A. chemical energy B. gravitational potential energy C. nuclear energy D. sound energy _______ 3. Waves can transfer energy, but they A. cannot carry sounds B. do not move matter C. always have the same wavelength D. are unable to move through empty space _______ 4. Which involves ONLY an energy A. from the air to the dog transfer? B. from the dog to the snow C. from the snow to the air A. A boy turns on an electric toaster to D. from the snow to the dog warm a piece of bread. B. A can of juice cools of in a ice chest on a hot summer day. _______ 8. Which decreases the thermal C. A cat jumps down from a tree branch. energy of a can of soup you just took out of D. A truck burns gasoline and moves 20 your pantry? km. A. letting the can sit on the counter for an _______ 5. Which could occur in a closed hour system? B. opening the lid of the can of soup with a can opener. A. Chemical energy is transformed to C. placing the can of soup under a bright electric energy in a system. light B. During transformation of chemical D. putting the can of soup in the energy to mechanical energy, thermal refrigerator energy is released to the environment. C. Electric energy from the environment is transferred to the system. D. Radiant energy is transferred to the environment. Name_______________________________________Date______________Hour______Table_____ Use the figure to answer questions 9 and 10 _______ 9. Which kind of energy is carried by the wave model shown? A. chemical energy B. electric energy C. radiant energy D. sound energy _______ 10. Which property does this type of wave have that other kinds of waves do not? A. it can travel through air B. it can travel through water C. it can travel through a vacuum D. it can travel through metal wires _______ 11. Which accurately describes potential energy and kinetic energy? A. A moving soccer ball has potential energy, while a rolling bowling ball has kinetic energy. B. A rock at the top of a cliff has potential energy, while a moving stream has kinetic energy. C. The energy stored in chemical bonds is potential energy, while the energy stored in an atom’s nucleus is kinetic energy. D. The energy stored in an atom’s nucleus is potential energy, while the energy stored in chemical bonds is kinetic energy. Use the figure to answer questions 12 and 13. _______ 12. The figure shows someone kicking a soccer ball. Which energy transformation occurs to make the FOOT move? A. chemical energy to mechanical energy B. mechanical to chemical energy C. mechanical energy to mechanical energy D. thermal energy to mechanical energy _______ 13. Which energy transfer occurs to make the BALL move? A. chemical energy from ball to foot B. chemical energy from foot to ball C. mechanical energy from ball to foot D. mechanical energy from foot to ball _______ 14. Which is a renewable energy resource that is used to produce electricity? A. biomass B. coal C. natural gas D. petroleum _______ 15. The figure shows a pan of water being heated. Which statement is true? A. the pan and flame are a closed system. B. the natural gas is undergoing an energy transfer C. This process results in a temperature change and possibly a change in state.