physics homework

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Across
  1. 1. from start to finish in a straight line
  2. 5. energy- energy that is not usefully transferred
  3. 8. both magnitude and direction
Down
  1. 2. only size and amount, but no direction
  2. 3. from a to b
  3. 4. two materials to cause a static charge to build up
  4. 6. material that does not allow current to flow through
  5. 7. energy-energy transferred to where it is wanted