Energy Year 8 DGS

12345678910111213141516171819202122232425262728
Across
  1. 1. a material that is effective at reducing transfer of thermal energy from one store to another
  2. 3. the situation in which objects are at the same temperature so that no energy is tranferred between them
  3. 4. one of the things that energy CANNOT be according to the law of conservation of energy
  4. 7. a simple machine that allows you apply a larger force over a smaller distance. You might use this to open a can of paint.
  5. 9. the energy store found in batteries
  6. 11. the unit of energy
  7. 12. where energy is transferred to an energy store that is not useful
  8. 15. the thing that energy CAN be according to the law of conservation of energy
  9. 16. the unit of power
  10. 17. the way that energy is transferred as a force moves through a distance.
  11. 18. work done = ________ x ________ (2 words)
  12. 22. the number of ways that energy can be transferred from one store to another
  13. 25. the energy store associated with height or position within a gravitational field (3 words)
  14. 26. the other thing that energy CANNOT be according to the law of conservation of energy
  15. 27. the unit of force
Down
  1. 2. the quality that is measured in degrees centigrade
  2. 5. the energy store associated with squashing or stretching or changing shape (3 words)
  3. 6. One of the three ways that thermal energy can be transferred - best in solids, particularly metals, energy is transferred as one particle collides with another.
  4. 8. the unit used by energy compies to measure the amount of energy used by consumers
  5. 10. the colour that is the best absorber and emitter of thermal radiation
  6. 13. as solids heat up, the particles in them vibrate ________
  7. 14. The number of kW in 9000W
  8. 19. the number of energy stores
  9. 20. the type of radiation emitted by all hot objects
  10. 21. the energy store associated with moving things
  11. 23. One of the three ways that thermal energy can be transferred - occurs in fluids as a local area of the fluid is heated, becomes less dense and rises. Cold fluid takes the place of the heated fluid and a current is set up.
  12. 24. One of the three ways that thermal energy can be transferred - unlike the other two, it occurs in a vacuum. Essential for life on Earth.
  13. 28. it is never transferred from a cold object to a hot object, only from a hot object to a cold object