Motion/Force

2. the force acting on an object due to gravity
6. the momentum of a system is constant if no external forces are acting on the system
7. the action of moving or changing position
8. property of matter by which it remains at rest
12. the force that acts in the opposite direction to an object moving through the air
14. states that for every action there is an equal and opposite reaction
16. the rate of change in velocity
18. the rate of change of position of an object
19. force that resists the sliding of one solid object over another
20. the acceleration of the body is directly proportional to the net force acting on the body

1. the motion of an object where gravity is the only force acting upon it
3. an invisible force that pulls object towards each other
4. the force on an object on a circular path that keeps the object moving on the path
5. states that an object at rest remains rest,and an object in motion remains in motion at constant speed
9. the push or pull on an object with mass
10. the change in position of an object
11. property of motion of an object traversing a circular path
13. measures how fast and what direction an object is moving
15. the maximum velocity attainable by an object as it falls through a liquid
17. the amount of space between two things