energy

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Across
  1. 4. is a measure of how much energy is wasted in the process
  2. 5. objects off the ground have
  3. 7. moving energy
  4. 8. heat energy
Down
  1. 1. a force pulling us down
  2. 2. wont run out because it can be replaced as quickly as it is used
  3. 3. another word for speed
  4. 6. what are the units of energy