Mechanics Crossword

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Across
  1. 3. The force pulling objects toward Earth
  2. 6. When an object is not moving
  3. 9. The starting point on a motion graph
  4. 10. A force that requires touching, like friction or tension
  5. 11. On a velocity-time graph, it represents displacement
  6. 12. The amount of matter in an object
  7. 13. The force that occurs in response to an action (Newton’s 3rd Law)
  8. 15. Speed in a given direction
  9. 19. The rate of change of velocity
  10. 20. The upward force acting on objects in fluids
  11. 22. A decrease in velocity (negative acceleration)
  12. 25. Type of velocity when forces are balanced in free fall
  13. 26. Newton’s law that states F = ma
  14. 27. An object's resistance to a change in motion (1st Law)
  15. 28. Sudden stop involving a large unbalanced force
  16. 29. A pulling force through a rope, string or cable
  17. 31. The slope of a line on a graph
  18. 33. How far an object moves (scalar)
  19. 35. Describes motion with zero acceleration
  20. 37. The net force when an object is in equilibrium
  21. 39. Surname of the scientist who formulated the three laws of motion
  22. 41. What you measure to calculate speed
  23. 44. When gravity is the only force acting on an object
  24. 45. Forces that are equal and opposite, causing no change in motion
  25. 46. The force that allows an airplane to rise
  26. 48. The support force perpendicular to a surface
Down
  1. 1. Change in position (vector)
  2. 2. The force of gravity acting on a mass
  3. 4. Newton’s law about action and reaction
  4. 5. A quantity with both magnitude and direction
  5. 7. A device that increases air resistance to slow falling objects
  6. 8. Type of force needed to change motion
  7. 14. A surface with no resistance to motion
  8. 16. A quantity with magnitude only
  9. 17. The force that opposes motion between two surfaces
  10. 18. Resistance A type of friction that acts against objects moving through air
  11. 21. A forward force, such as from a jet engine or rocket
  12. 23. A mutual action between two objects that exert forces on each other
  13. 24. Type of energy related to moving objects
  14. 30. Describes an object that is at rest
  15. 32. When all forces on an object are balanced
  16. 34. Another word for the gradient of a graph line
  17. 36. Force The total force acting on an object after all forces are added
  18. 38. A visual way of showing motion over time
  19. 40. The unit of force
  20. 42. The force that resists motion through a fluid
  21. 43. How fast something moves; distance divided by time
  22. 44. Motion affected by gravity only
  23. 47. A push or pull; causes acceleration