Across
- 2. the speed and direction of an object's motion
- 5. the measure of the distance an object travels per unit of time
- 6. the gravitational force exerted on an object
- 9. a force that resists the sliding motion of two surfaces that are touching
- 11. a force that one object can apply to another object without touching it
- 12. an attractive force that exists between all objects in the universe that have mass
- 14. Newton's ________ law of motion states that when one object exerts a force on a second object, the second object exerts a force of the same size but in the opposite direction back onto the first object
- 15. the reaction force in a force pair that always pushes perpendicular to the object's surface
- 17. the process of changing position
- 19. the starting point you choose to describe the location or position of an object
- 20. a quantity that has a magnitude and direction and is often represented with an arrow
Down
- 1. the action and reaction forces two objects apply onto each other
- 3. a simple model that uses arrows to help you understand the forces acting on an object
- 4. Newton's ______ law of motion states that if the net force on an object is zero, the motion of the object does not change
- 7. the sum of all the forces acting on an object
- 8. a push or a pull on one object by another that is touching it
- 9. a region of space that has a physical quantity (such as force) at every point
- 10. a measure of the change in velocity during a period of time
- 13. an object's distance in a certain direction from a reference point
- 16. a push or a pull on an object
- 18. Newton's _______ law of motion states that the acceleration of an object is equal to the net force acting on an object divided by the object's mass