Mechanics Crossword

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