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