4 Energy Resources and Energy Transfers (Single Award)

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Across
  1. 3. A store of energy found in things such as batteries, fuels and food.
  2. 5. The potential energy of a magnet.
  3. 6. The store of energy that all raised matter has. It is directly proportional to the mass of the object, the distance that it is raised, and the gravitational field strength at that point.
  4. 7. Bodies at a fixed temperature radiate the same average power that they absorb.
  5. 9. The law that energy can be transferred, stored or dissipated but never created or destroyed.
  6. 12. The application of a lubricant (such as oil) to reduce the friction that acts between surfaces. This may improve the efficiency of a system.
  7. 13. The unit used for energy. Equal to the work done when a force of one Newton acts over a distance of one metre.
  8. 14. A system that experiences no net change in its total energy when energy transfers occur within it.
  9. 15. The store of energy that all objects with a temperature contain. The higher the temperature, the greater its thermal energy store.
  10. 16. The transfer of energy, without the transfer of matter. No medium is needed for radiation to occur.
  11. 18. The store of energy that all moving matter has. It is directly proportional to the object’s mass and to the square of its velocity.
  12. 20. The rate at which energy is transferred, or the rate at which work is done. It is calculated by dividing the work done by the time taken.
Down
  1. 1. A diagram used to show the energy transfers of a system.
  2. 2. Coal, oil and gas.
  3. 4. The store of energy due to the relative position of a charge in an electric field.
  4. 8. The transfer of energy by a system, to directly serve the purpose of the system.
  5. 10. The store of energy that stretched or compressed objects contain.
  6. 11. The transfer of energy by a system to a form that doesn’t directly serve the purpose of the system.
  7. 17. The store of energy found in the nuclei of atoms.
  8. 19. Work is done on an object when a force causes it to move through a distance. It is equal to the product of the distance travelled and the magnitude of the force in the direction of motion.