Science

3. resistance the frictional force air exerts against a moving object.
5. push suddenly or violently in a specified direction.
7. In physics, net force is the overall force acting on an object.
8. The upward force that a liquid or gas exerts on a body floating in it.
11. having different elements in the correct proportions.
12. How much ground an object has covered
16. increase in speed or rate.
17. exert force on (someone or something) so as to cause movement towards oneself.
18. The measure of the number of atoms in an object

1. the resistance that one surface or object encounters when moving over another.
2. resistance resisting though not entirely preventing the penetration of water.
4. the action of driving or pushing forwards
6. not giving accurate, fair, or equal coverage to all aspects.
9. the rate at which someone or something moves or operates or is able to move or operate.
10. to do nothing or to remain unchanged.
13. In physics, motion is a change in position of an object over time.
14. It is equal to the force that would give a mass of one kilogram an acceleration of one metre per second per second, and is equivalent to 100,000 dynes.
15. the force that attracts a body towards the centre of the earth, or towards any other physical body having mass
17. exert force on (someone or something) in order to move them away from oneself.