Physics

3. - the ability to achieve maximum productivity with minimum wasted effort
4. - a physical quantity representing the total amount of matter in an object
5. - Something possible but not yet actual
6. - a numerical or qualitative measurement of how far objects, point or locations are
9. - a person or device that adjusts, measures or removes scale
10. - the invisible force of attraction that pulls objects with mass toward each other
14. - the removal of something from its usual place
15. - the natural tendency of an object to resist changes in its state of motion
16. - a push or a pull on an object which results in an interaction with another object
17. - the capacity to do work or producing light, heat or motion

1. - The sustainable management, protection and preservation of natural resources, environments and ecosystems
2. - the rate at which an object moves, covers distance or acts
7. - the rate at which an object's velocity changes over time
8. - the force exerted on an object by gravity representing the heaviness of an object
11. - Things relating to, involving or producing motion
12. - A quantity defined by both magnitude and direction
13. - the rate of change of an objects position in relation to time, speed and direction
18. - The state of balance between opposing forces, influences or actions