Energy

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Across
  1. 3. Transformer used to increase Potential Difference
  2. 5. The green and yellow wire in a plug
  3. 8. Tidal power can damage these
  4. 12. What a fuse does when too much current flows through it
  5. 13. KILOJOULES of energy required to heat 2kg of Aluminium by 10C (c = 900 J/KG C)
  6. 17. Joules of GPE gained when a mass of 2kg is raised by 1m (g=10)
  7. 18. The release of Carbon Dioxide is changing this
  8. 19. Power of a bulb which converts 120J in 2s
  9. 23. Wind, Solar and Geothermal are all ________ Energy Sources
  10. 25. Connected into the Live wire in a plug for safety
  11. 26. One of the major costs of Nuclear power stations
  12. 27. Energy can neither be _________ nor destroyed
  13. 30. Reason why the case of a plug is made of rubber or plastic
  14. 32. Current which changes polarity 50 times per second
  15. 34. The part of an appliance the Earth wire is connected to
  16. 35. Potential Energy store of a stretched spring
  17. 37. Work Done = _______ x Distance
  18. 38. Current in Amps when a device with a power of 120 W has a Potential Difference of 4 V
  19. 39. The colour of the neutral wire in a cable
  20. 40. UK Domestic Potential Difference is 230 ___
Down
  1. 1. Non renewable resource which gives off no Carbon Dioxide
  2. 2. Units of Energy
  3. 3. Transformer used to decrease Potential Difference
  4. 4. Fuels such as coal, oil and gas
  5. 6. Energy of a raised object
  6. 7. A single object or group of objects in which a scientist is interested.
  7. 9. The energy store of anything from which energy can be released by a reaction eg combustion.
  8. 10. Percent efficiency of a machine which does 20J of useful work from an input of 50J
  9. 11. Power from energy in hot rocks in the ground
  10. 14. Power from water released from dams.
  11. 15. Energy of a moving object
  12. 16. The energy stored in a spring stretched by 6m when k = 0.5 N/m
  13. 20. __________ heat capacity is the energy require to raise 1 kg of a material by 1 C
  14. 21. The same as energy transferred
  15. 22. Energy/Time
  16. 24. Coal, Oil and Gas are all _____________ Energy Sources
  17. 28. Electrical Power = Potential Difference x ___________
  18. 29. Units of Power
  19. 31. Gas that turns a turbine in a Fossil Fuel Power station
  20. 33. Energy is usually wasted as this type of energy
  21. 36. Material the pins of a plug are made of
  22. 37. Frequency of UK domestic electricity
  23. 41. The brown wire in a plug