4:4 vocab crossword

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Across
  1. 3. energy that is moving
  2. 4. this is the state or quality of being efficient
  3. 6. this is when electrons from a voltage or current source flow
  4. 8. stored energy that is at rest
  5. 9. simple machines are simple to use (the lever, the wheel and axle, the inclined plane, the wedge, the pulley, and the screw
Down
  1. 1. this is the sum of potential and kinetic energy
  2. 2. this is when there is an electric change
  3. 5. this is a measure of the force amplification achieved by using a tool
  4. 7. this is when you use kinetic energy to get your job done