Force

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Across
  1. 1. the force the machine applies
  2. 4. the force of attraction between objects that is due to their masses
  3. 6. the friction between moving surfaces
  4. 7. the unit for power
  5. 8. the type of forces that result in no change of motion
  6. 9. a force that opposes motion between two objects that are in contact
  7. 14. the more of this, the harder it is to stop the object or change its direction
  8. 18. the work that you do on a machine
  9. 19. acceleration that occurs in a circular motion
  10. 26. property that is measured in Newtons
  11. 27. the work done by the machine
  12. 28. motion the curved path an object follows when it is thrown
  13. 29. a decrease in velocity (also known as deceleration)
  14. 30. machines that are made of two or more simple machines
  15. 31. forces in the same direction are ___ to get the net force
  16. 34. lever where the fulcrum is between the input force and the load
  17. 38. if gravity is pulling an object down and there are no other forces acting on it
  18. 39. lever where the input force is between the fulcrum and the load
  19. 40. when the weight is equal to the buoyant force
  20. 41. a pair of inclined planes that move
  21. 42. when an object changes position over time relative to a reference point
  22. 43. when the weight is greater than the buoyant force
  23. 44. work output divided by work input multiplied by 100
  24. 45. a device that makes work easier by changing the size and direction of a force
  25. 48. force equals mass times acceleration
  26. 49. distance divided by time
  27. 51. the type of forces needed to change the motion of an object
  28. 56. calculated by acceleration due to gravity times time (for falling objects)
  29. 57. pulley that is attached to the object being moved
Down
  1. 2. the constant velocity when the force of resistance is equal in magnitude and opposite in direction as the force of gravity
  2. 3. the friction between objects that causes them not to move
  3. 5. work divided by time
  4. 10. the force that you apply to a machine
  5. 11. force times distance
  6. 12. the force that opposes the motion of objects through the air
  7. 13. describes balanced forces acting on objects
  8. 15. forces in opposite directions are ___ to get the net force
  9. 16. when a force is exerted, there is an equal but opposite reaction force
  10. 17. output force divided by input force
  11. 20. an increase in velocity
  12. 21. unbalanced forces that cause circular motion
  13. 22. another name for Newton's Third Law of Motion
  14. 23. final velocity minus starting velocity divided by the time it takes to change velocity
  15. 24. the combination of all of the forces on an object
  16. 25. the unit for work
  17. 26. simple machine consisting of two circular objects of different sizes
  18. 32. the tendency of all objects to resist any change in motion
  19. 33. lever where the load is between the fulcrum and the input force
  20. 35. a straight slanted surface
  21. 36. mass divided by volume
  22. 37. the upward force exerted by fluids
  23. 46. the measure of inertia
  24. 47. when fixed and movable pulleys are used together
  25. 50. pulley that is attached to something that does not move
  26. 52. another name for Newton's First Law of Motion
  27. 53. the unit of force
  28. 54. an inclined plane wrapped around a cylinder
  29. 55. a push or a pull