Across
- 2. A tug-of-war match is an example of _______ and unbalanced forces
- 7. Law of action-_______ states "For every external force exerted on a system by its surroundings, the system exerts an equal but opposite force on its surroundings"
- 8. The momentum of a rotating object is _________ momentum
- 10. Law of _____ motion states "The acceleration of a system is directly proportional to the net force acting on the system and is inversely proportional to its mass"
- 11. __________ is everywhere and affects nearly all motion, slowing things down and wearing parts out.
- 14. contact force that pulls things apart
- 15. contact forces that move in opposite directions along a parallel line
- 16. contact force that pushes things together
- 19. Momentum or movement along a straight path is __________ momentum
Down
- 1. The English physicist ________________ later extended Galileo's studies to create the laws of motion
- 3. Elisha Graves Otis was a mechanic who created _________ brakes
- 4. Newton discovered that moving objects have a property that determined how much force is required to change their motion. This is called _________
- 5. ________ forces acts only when one system touches another
- 6. 9.81 m/s2 is the average __________ acceleration near sea level.
- 9. The study of kinds of forces, how they interact with matter, and how they affect the motion of objects are some of the most important aspects of ___________
- 11. Described as a push or pull
- 12. Law of _____ states "Objects at rest remain at rest, and objects in motion continue in a straight line at a constant velocity unless acted upon by a net external force"
- 13. contact force that twists objects
- 17. force field that surrounds magnets and materials with electricity flowing through them
- 18. force field that surrounds and affect electrical charges