Physical Science Unit 2 Review

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Across
  1. 2. force of friction between an object and a fluid
  2. 3. when air resistance equals gravity an object stops accelerating and continues to fall at a constant velocity
  3. 5. amount of force exerted on a given area
  4. 6. amount of matter in a given volume
  5. 9. pressure caused by the weight of the atmosphere
  6. 11. unbalanced force that causes objects to move in a circular path
  7. 12. unpredictable flow of fluids
  8. 14. unit of measure of force
  9. 15. when only gravity is pulling down on an object and no other forces are acting on it
  10. 18. measure of the gravitational force exerted on an object
  11. 20. rate at which velocity changes
  12. 21. force of friction due to motion from sliding an object
  13. 22. upward force that fluids exert on all matter
  14. 23. force that opposes or restricts motion in a fluid
  15. 28. force of friction between a rolling object and another surface
  16. 30. upward force caused by fast-moving air above a plane’s wing
  17. 31. tendency of all objects to resist any change in motion
  18. 33. acceleration that occurs in a circular motion
  19. 34. property of a moving object that depends on the object’s mass and velocity
  20. 35. the speed of an object in a particular direction (rate of change of position)
  21. 36. force of attraction between objects that is due to their masses
  22. 37. a change in pressure at any point in an enclosed fluid will be transmitted equally to all parts of that fluid
Down
  1. 1. as the speed of a moving fluid increases, its pressure decreases
  2. 4. forward force produced by a plane’s engine
  3. 7. when a force is applied to an object but does not cause the object to move
  4. 8. velocity that results from combining the velocities of two objects
  5. 10. curved path an object follows when thrown or propelled near the surface of the Earth
  6. 13. force that opposes motion between two surfaces that are touching
  7. 16. a push or pull
  8. 17. the buoyant force on an object in a fluid is an upward force equal to the weight of the volume of fluid that the object displaces
  9. 19. any material that can flow and that takes the shape of its container
  10. 21. the rate at which an object moves
  11. 24. an object that changes position over time when compared with a reference point
  12. 25. fluid friction that opposes motion of objects through air
  13. 26. an object that appears to stay in place as we observe an object in motion
  14. 27. devices that use liquids to transmit pressure from one point to another
  15. 29. when net force is not zero; produces change in motion
  16. 32. force that results from combining all the forces exerted on an object