Chapter 12 Glossary Terms

  1. Direct Current(DC) Definition
    current in which charged particles travel through a circuit in only one direction
  2. Alternating Current(AC) Definition
    a current in which electrons move back and forth in a circuit
  3. Transformer Definition
    an electrical device that changes the size of potential difference of an alternating current
  4. Circuit breaker Definition
    a safety device that is placed in series with other circuits that lead to appliances and outlets
  5. Fuse Definition
    a safety device that is found in older buildings and some appliances; like a circuit breaker, it is placed in series with other circuits that lead to appliances and outlets
  6. Electrical power Definition
    the rate which an appliance uses electrical energy
  7. Watt(W) Definition
    a unit of electrical power; 1 kilowatt=1000W
  8. Kilowatt(kW)
    a practical unit of electrical power; 1 kW=1000W
  9. Electrical energy Definition
    the energy that is used by an appliance at a given setting; is determined by multiplying its power rating by the length of time its used
  10. Kilowatt-hour(kw-h) Definition
    the practical unit of electrical energy
  11. EnerGuide label Definition
    a label that gives details about how much energy an appliance uses in one year of normal use
  12. Smart Meter Definition
    a meter that records the total energy used hour by hour and sends this information to the utility company automatically
  13. Time of use pricing Definition
    a system of pricing in which the cost of each kW-h of energy used is different times of the day
  14. Phantom Load Definition
    the electricity that is consumed by an appliance or device when it is turned off
  15. Efficiency Definition
    the ratio of useful energy output to total energy input, expressed as a percentage
  16. Base Load Definition
    the continuous minimum demand for electrical power
  17. Hydroelectric power generation Definition
    the production of electricity using a source of moving water
  18. Intermediate Load Definition
    a demand for electricity that is greater than the base load and is met by burning fossil definition
  19. Peak Load Definition
    the greatest demand for electricity , which is met by using hydroelectric power and natural gas
  20. Renewable Energy Source Definition
    a source of energy that can be replaced in a relatively brief period of time
  21. Non-renewable energy source Definition
    a source of energy that cannot be replaced as quickly as it is used
  22. Solar energy Definition
    energy that is directly converted from the energy of the sun into electricity
  23. Photovoltaic Effect Definition
    the generation of a direct current of a direct current when certain materials are exposed to light
  24. Biomass Energy Definition
    A biofuel is a fuel that contains energy from geologically recent carbon fixation. These fuels are produced from living organisms
Card Set
Chapter 12 Glossary Terms
Chapter 12 Glossary Terms