Science crossword puzzle

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Across
  1. 4. – the rate at which speed changes
  2. 6. – energy caused by the movement of electric charges
  3. 8. – the opposition to the flow of electric current
  4. 9. – repeated back-and-forth movement
  5. 12. – the distance an object moves in a direction
  6. 14. – a force that presses objects together
  7. 15. – protection that prevents electricity from flowing out
  8. 16. – a force that pulls objects closer
  9. 18. – a force created by electric current and magnets
  10. 19. – the movement of energy from one place to another
Down
  1. 1. – finding the size, amount, or value of something
  2. 2. – the process of making an object magnetic
  3. 3. – a state where forces are balanced
  4. 5. – a change from one form of energy to another
  5. 7. – the force that pulls objects toward each other
  6. 10. – a force that pushes objects apart
  7. 11. – a force that stretches an object
  8. 13. – the force of a moving object
  9. 14. – the ability of a material to allow electricity to pass
  10. 17. – speed in a given direction