forms of energy

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Across
  1. 4. has statistical charges
  2. 6. change form one form to another
  3. 8. is a machine built to do a certain job
  4. 9. a fundamental resulting of energy
Down
  1. 1. something to help people make their product better
  2. 2. is energy built to do a certain job
  3. 3. electromagnetic radiation
  4. 5. a change in position over a relative point
  5. 7. a transfer of thermal energy