Across
- 5. a diagram used to show the relative magnitude and direction of all forces acting upon an object in a given direction
- 7. distance an object travels per unit of time
- 9. combination of all the forces acting on an object
- 10. a push or pull on an object by another object that is touching it
- 11. a force caused by air, acting in the opposite direction of a moving object
- 12. the constant speed that a freely falling object reaches when the resistance of the medium through which it is falling prevents further acceleration
- 13. distance divided by time
- 14. friction that occurs as an object moves through a fluid
- 16. combined forces that form a net force that is not zero
- 21. a force that causes an object to move in a circle
- 22. the tendency of an object to resist a change in motion
- 24. compared to
- 25. friction that occurs when an object rolls over a surface
- 27. friction that occurs when one solid surface slides over another
- 28. the force that the ground (or any surface) pushes back up with.
- 29. the force that resists motion in a fluid
- 30. object’s distance and direction from a reference point
- 31. states that the force of gravity acts between all objects in the universe that have mass
- 33. rate of change of position in which the same distance is traveled each second
- 34. the force that two surfaces exert on each other when they rub against each other
- 39. difference between initial position and final position of an object
- 40. a measure of the force of gravity on an object
- 41. a unit of measurement that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second
- 43. speed and direction of a moving object
- 44. the rule that in the absence of outside forces the total momentum of objects that interact does not change
- 45. the product of an object’s mass and velocity
- 46. the amount of matter in an object
Down
- 1. to indicate or identify
- 2. states that an object’s acceleration depends on its mass and on the net force acting on it
- 3. forces that two objects apply to each other
- 4. starting point you choose to describe the location, or position, of an object
- 6. for every action there is an equal and opposite reaction
- 8. distance or length measured in one direction
- 14. a push or pull exerted on an object
- 15. a force that is applied to an object by a person or another object
- 17. the rate at which velocity changes
- 18. process of changing position
- 19. an arrow used to show a force’s magnitude and direction.
- 20. friction that acts between objects that are not moving
- 23. any motion in which an object is moving along a curved path
- 26. an English physicist and mathematician famous for his laws of physics
- 32. the motion of an object does not change if the net force on an object is zero
- 35. the motion of a falling object when the only force acting on it is gravity
- 36. speed at a specific instant in time
- 37. combined forces form a net force of zero
- 38. the attractive force between objects; the force that moves objects downhill
- 42. one of the two factors that affect the gravitational attraction between objects