Air: Physical Science CW 1

12345678910111213141516171819202122232425262728293031323334353637383940414243
Across
  1. 5. for every action there is an equal and opposite reaction
  2. 6. combined forces that form a net force that is not zero
  3. 9. a region around an object that can attract or repel other objects in its area
  4. 12. starting point you choose to describe the location, or position, of an object
  5. 16. the overall force on an object when all the individual forces acting on it are added together
  6. 18. friction that acts between objects that are not moving
  7. 20. a force caused by air, acting in the opposite direction of a moving object
  8. 23. the region around a charged object where the object’s electric force is exerted on other charged objects
  9. 28. a force that causes an object to move in a circle
  10. 34. friction that occurs when an object rolls over a surface
  11. 38. the constant speed that a freely falling object reaches when the resistance of the medium through which it is falling prevents further acceleration
  12. 39. the force that resists motion in a fluid
  13. 40. the attractive force between objects; the force that moves objects downhill
  14. 41. the product of an object’s mass and velocity
  15. 43. a method of charging an object by allowing electrons to flow by direct contact from one object to another object
Down
  1. 1. the force that the ground (or any surface) pushes back up with
  2. 2. a material that does not easily allow electric charges to flow
  3. 3. any material that attracts iron and materials that contain iron
  4. 4. states that an object’s acceleration depends on its mass and on the net force acting on it
  5. 7. combined forces form a net force of zero
  6. 8. the motion of a falling object when the only force acting on it is gravity
  7. 10. to push away
  8. 11. a magnet created by wrapping a coil of wire with a current running through it around a core of materials that is easily magnetized
  9. 13. a diagram used to show the relative magnitude and direction of all forces acting upon an object in a given direction
  10. 14. states that the force of gravity acts between all objects in the universe that have mass
  11. 15. a force that is applied to an object by a person or another object
  12. 17. an arrow used to show a force’s magnitude and direction.
  13. 18. the loss of static electricity as electric charges transfer from object to another
  14. 19. a method of redistributing the charge on an object by means of the electric field of another object; the objects have no direct contact
  15. 21. speed and direction of a moving object
  16. 22. the region around a magnet where the magnetic force is exerted
  17. 24. to come together
  18. 25. the motion of an object does not change if the net force on an object is zero
  19. 26. the motion of a falling object when the only force acting on it is gravity
  20. 27. a unit of measurement that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second
  21. 29. friction that occurs as an object moves through a fluid
  22. 30. friction that occurs when one solid surface slides over another
  23. 31. a measure of the force of gravity on an object
  24. 32. the force that two surfaces exert on each other when they rub against each other
  25. 33. a material that allows electric charges to flow
  26. 35. a push or pull exerted on an object
  27. 36. the rate at which velocity changes
  28. 37. the tendency of an object to resist a change in motion
  29. 42. the amount of matter in an object