Lesson 1.2 Energy Sources - Key Term Crossword

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Across
  1. 4. A dynamo or similar machine for converting mechanical energy into electricity.
  2. 5. A fundamental entity of nature that is transferred between parts of a system in the production of physical change within the system and usually regarded as the capacity for doing work.
  3. 7. A result of a force moving an object a certain distance.
  4. 8. Energy Any source of energy other than fossil fuels that is used for constructive purposes.
  5. 10. The potential difference measured in volts. The amount of work to be done to move a charge from one point to another along an electric circuit.
  6. 11. Energy The energy that a piece of matter has because of its position or nature or because of the arrangement of parts.
  7. 13. Plant materials and animal waste used especially as a source of fuel.
  8. 15. The unit of electric current in the meter-kilogram-second system of units. Referred to as amp and symbolized as A.
  9. 16. Circuit A circuit in which all parts are connected end to end to provide a single path of current.
  10. 17. Energy Energy which a body possesses by virtue of being in motion.
  11. 19. The flow of electrical power or charge.
  12. 20. A machine for producing power in which a wheel or rotor is made to revolve by a fast-moving flow of water, steam, gas, or air.
  13. 22. The opposition that a device or material offers to the flow of direct current.
  14. 24. Fuel A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
  15. 25. Energy An energy source that will never run out.
  16. 28. Law States that the direct current flowing in an electric circuit is directly proportional to the voltage applied to the circuit.
  17. 29. Converter Changes one form of power to another.
  18. 30. Conversion Changing one form of energy to another.
  19. 31. Energy The state when objects are not yet in motion.
  20. 33. Grid A system that links electricity produced in power stations to deliver it to where it is needed.
Down
  1. 1. Energy Energy caused by the movement of electrons.
  2. 2. Energy A resource that cannot be replaced once used.
  3. 3. Energy A resource that can be replaced when needed.
  4. 6. The ratio of the useful energy delivered by a dynamic system to the energy supplied to it.
  5. 9. Protection Agency An organization that works to develop and enforce regulations that implement environmental laws enacted by Congress.
  6. 12. The unit of potential difference symbolized as V.
  7. 14. Energy The use of heat from within the Earth or from the atmosphere near oceans.
  8. 18. The production of an electric or magnetic state by the proximity (without contact) of an electrified or magnetized body.
  9. 21. Induction The production of electricity in conductors with the use of magnets.
  10. 23. The unit of electric resistance in the meter-kilogram-second system of units. Symbolized as Ω.
  11. 26. The net transfer of electric charge (electron movement along a path) per unit of time.
  12. 27. The rate at which work is performed or energy is expended.
  13. 29. Circuit A closed electrical circuit in which the current is divided into two or more paths and then returns via a common path to complete the circuit.
  14. 32. The rotating member of an electrical machine.