Newton's Laws

4. an object at rest stays at rest, an object at motion stays in motion, unless acted on by an outside force.
8. a force where two forces of equal size, act on a body, in opposing directions.
10. illustration used to visualize the applied forces and the resulting force.
12. the universal force of attraction acting between all matter.
14. a push or pull or any action that has the ability to change motion.
16. the force that holds the nucleus of atoms together.
17. how fast something is traveling.
19. for every action force, there is a force equal in strength and opposite in direction.
20. the amount of matter in an object.
21. the force that results in some radioactive decay in some atoms.

1. the force that emits energy in waves
2. results in a change in motion and a net force
3. all objects with mass are attracted to all other objects with mass.
5. an object’s tendency to maintain its state of motion, or resist change in velocity.
6. the force that opposes the motion between two objects that are in contact.
7. the speed of something in a given direction.
9. a unit of measurement used to measure force.
11. the rate of change in velocity over a period of time.
13. the sum of forces acting on a particle or body.
15. the two forces that act on an object to put it into motion under Newton’s 3rd Law of motion.
18. acceleration is directly proportional to the force applied, and inversely proportional to mass.