Crossword Puzzle

5. A contact force that resists the sliding motion of two surfaces that are touching
7. of conservation of momentum A principle stating that the total momentum of a group of objects stays the same unless outside forces act on the objects
8. A measure of how hard it is to stop a moving object
9. pair The forces two objects apply to each other
10. forces Forces acting on an object that combine and form a net force of zero
13. second law of motion Law that states that the acceleration of an object is equal to the net force exerted on the object divided by the object's Mass
14. force In circular motion, a force that acts perpendicular to the direction of motion, toward the center of the curve
15. force The combination of all forces acting on an object
16. The amount of matter in an object

1. motion Any motion in which an object is moving along a curved path
2. first law of motion Law that states that if the net force acting on an object is zero, the motion of the object does not change
3. force The force that one object applies to another object without touching it
4. An attractive force that exists between all objects that have mass
5. A push or pull on an object
6. The tendency of an object to resist a change in its motion
11. force A push or pull on one object by another object that is touching it
12. the gravitational force exerted on an object
13. third law of motion law that states that for every action there is an equal and opposite reaction