force and motion

2. the amount of matter in an object.
6. an object is moving at a steady speed in a straight line.
8. the total force acting on an object when you combine all the individual forces.
9. a force that happens when two objects touch each other.
10. change in velocity over period time of time
12. a push or pull on an object.
13. It can slow things down or stop them from moving.
14. when is the position of a object changes

1. speed how fast a object is moving at a given time
3. when the forces acting on an object are not equal
4. a force that pulls objects toward each other.
5. the property of an object that makes it stay at rest or keep moving at the same speed unless something else acts on it.
7. when two or more forces acting on an object are equal in size but opposite in direction.
11. change in speed at a given time