Motion Forces and Newton's Laws

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Across
  1. 1. a push or pull on an object that may cause it to move.
  2. 5. For every action force there is an equal and opposite reaction force.
  3. 7. The tendency of an object to remain at rest of in motion with a constant velocity until an external force acts upon it.
  4. 9. Sum of all the forces acting on a body.
  5. 11. friction of force applied by the air on bodies that are moving through it.
  6. 14. The maximum velocity reached by a falling object that occurs when the resistance of the medium is equal to the force due to gravity.
  7. 15. The un balanced force acting on an object equals the object’s mass times its acceleration.
  8. 17. Combined velocity of two objects; obtained by adding or subtracting their velocities.
  9. 20. device to measure speed in real time OR at a given time.
  10. 21. the resistance created by two objects sliding against each other.
  11. 22. distance traveled in a unit time; a measure of how fast something is moving.
  12. 25. Change in the velocity divided by the time interval in whi8ch the change occurred.
  13. 30. An object at rest remains at rest and an object in motion maintains its velocity unless it experiences an unbalanced force.
  14. 31. Forces acting on an object that combine to produce a net force equal to zero.
  15. 32. The force of friction that exists between a stationary object and the surface on which it's resting.
  16. 33. The force that attracts an object toward the center of the earth; force of attraction between two objects due to their mass.
  17. 34. forces acting on an object that combine to produce a net nonzero force which may cause motion.
Down
  1. 2. When an object covers equal distance in equal amount of time.
  2. 3. Negative acceleration or slowing down
  3. 4. Length of the path travelled.
  4. 6. friction that occurs when a wheel, ball, or cylinder roll freely over a surface, as in ball and roller bearings. T
  5. 8. speed at any instant in time.
  6. 10. Total distance traveled divided by total amount of time it has taken.
  7. 12. An object's speeding up toward the center of the earth (or any planet) due to its gravity.
  8. 13. Velocity of a falling object when the gravity and air resistance become equal.
  9. 16. The background in which an object is moving.
  10. 18. The force between two objects in contact that opposes the motion of either object.
  11. 19. The SI unit for force.
  12. 23. fall The motion of a body when only the force of gravity is acting on it.
  13. 24. Effect of gravity on the mass of an object.
  14. 26. force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. ..
  15. 27. speed with direction
  16. 28. Linear distance between the starting and ending point.
  17. 29. Amount of matter in a substance.