Physics

4. the change in an object's position from its initial to final location
6. natural tendency of objects in motion to stay in motion and objects at rest to stay at rest
11. he principle that a specific quantity remains constant within an isolated system, despite changes in the system's state
13. a push or pull upon an object that can change its motion
14. an object with zero linear and rotational accelerations
15. the length of the space between two points.
17. a form of energy that an object or a particle has by reason of its motion
18. the force that attracts a body towards the centre of the earth

1. an increase or decrease in the magnitude of a property (e.g. temperature, pressure, or concentration) observed in passing from one point or moment to another.
2. the energy a system possesses due to its position or state
3. the force exerted on an object due to gravity
5. a single vector that represents the combined effect of two or more vectors
7. quantity that designates how fast and in what direction a point is moving
8. the rate of change of an object's velocity over time
9. the capacity for doing wor
10. the rate at which an object's position changes, measured in meters per second
12. how much matter there is in an object
16. the amount of energy that is usefully transferred