Force

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