Across
- 5. for every action there is an equal and opposite reaction
- 6. combined forces that form a net force that is not zero
- 9. a region around an object that can attract or repel other objects in its area
- 12. starting point you choose to describe the location, or position, of an object
- 16. the overall force on an object when all the individual forces acting on it are added together
- 18. friction that acts between objects that are not moving
- 20. a force caused by air, acting in the opposite direction of a moving object
- 23. the region around a charged object where the object’s electric force is exerted on other charged objects
- 28. a force that causes an object to move in a circle
- 34. friction that occurs when an object rolls over a surface
- 38. the constant speed that a freely falling object reaches when the resistance of the medium through which it is falling prevents further acceleration
- 39. the force that resists motion in a fluid
- 40. the attractive force between objects; the force that moves objects downhill
- 41. the product of an object’s mass and velocity
- 43. a method of charging an object by allowing electrons to flow by direct contact from one object to another object
Down
- 1. the force that the ground (or any surface) pushes back up with
- 2. a material that does not easily allow electric charges to flow
- 3. any material that attracts iron and materials that contain iron
- 4. states that an object’s acceleration depends on its mass and on the net force acting on it
- 7. combined forces form a net force of zero
- 8. the motion of a falling object when the only force acting on it is gravity
- 10. to push away
- 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
- 13. a diagram used to show the relative magnitude and direction of all forces acting upon an object in a given direction
- 14. states that the force of gravity acts between all objects in the universe that have mass
- 15. a force that is applied to an object by a person or another object
- 17. an arrow used to show a force’s magnitude and direction.
- 18. the loss of static electricity as electric charges transfer from object to another
- 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
- 21. speed and direction of a moving object
- 22. the region around a magnet where the magnetic force is exerted
- 24. to come together
- 25. the motion of an object does not change if the net force on an object is zero
- 26. the motion of a falling object when the only force acting on it is gravity
- 27. a unit of measurement that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second
- 29. friction that occurs as an object moves through a fluid
- 30. friction that occurs when one solid surface slides over another
- 31. a measure of the force of gravity on an object
- 32. the force that two surfaces exert on each other when they rub against each other
- 33. a material that allows electric charges to flow
- 35. a push or pull exerted on an object
- 36. the rate at which velocity changes
- 37. the tendency of an object to resist a change in motion
- 42. the amount of matter in an object