Forces And Motion

5. an explanation of an aspect of the natural world and universe that can be repeatedly tested
9. the tendency not to move or change
10. the resistance that one surface or object encounters when moving over another.
11. method of procedure that has characterized natural science
12. the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
13. resistance the force that acts in the opposite direction to an object moving through the air.
14. the acceleration of an object is directly related to the net force and inversely related to its mass.
16. two forces that act in the opposite direction
19. for every action (force) in nature there is an equal and opposite reaction.
20. the moving of something from its place or position.

1. the impetus gained by a moving object.
2. the rate at which someone or something is able to move or operate.
3. increase in the rate of something
4. the resistance created by any two objects when sliding against each other.
6. a force that acts on a body moving in a circular path and is directed toward the center around which the body is moving.
7. a force that keeps an object at rest.
8. a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact
15. a body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing.
17. the speed of something in a given direction.
18. strength or energy as an attribute of physical action or movement.