5.1 Crossword

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Across
  1. 3. Force acting on a squeezed object
  2. 6. Force acting on a pulled object
  3. 8. Type of friction on rubbing objects
  4. 9. Our unit of measurement for weight and force
  5. 10. The measurement of the force of gravity
  6. 12. Type of friction on a bird
  7. 13. Type of friction on a still object
  8. 15. An action with the ability to change motion
  9. 17. Elementary force causing radioactivity
  10. 19. elementary force acting on nucleus of atom
  11. 20. type of friction on a submarine
Down
  1. 1. Type of friction on a wheel
  2. 2. Our unit of measurement for mass
  3. 4. our unit of measurement for gravity
  4. 5. force that resists the motion of objects or surfaces
  5. 7. Property of an object that resists change in motion
  6. 11. Elementary force using positive and negative charges
  7. 14. friction turns into _____ energy
  8. 16. Does not change on other planets
  9. 18. Elementary force causing masses to attract