Across
- 3. a force that acts perpendicular to the direction of motion, toward the center of the curve
- 6. if the net force on an object is zero, the motion of the object does not change, law of inertia
- 9. the forces two objects apply to each other
- 10. a push or pull on one object by another that is touching it
- 11. that combine to produce a net force that is not equal to zero and cause the velocity of an object to change.
- 12. forces
- 14. A measure of the amount of matter in an object
- 17. The tendency of an object to resist a change in motion
- 18. the total momentum of a group of objects stays the same unless outside forces act on the objects
- 19. mass x acceleration
- 20. the force that opposes the motion between two surfaces that are touching
Down
- 1. A force of attraction between objects that is due to their masses.
- 2. the gravitational force exerted on an object
- 4. forces acting on an object that combine and form a net force of zero
- 5. any motion in which an object is moving along a curved path
- 7. final speed-initial speed/time
- 8. The combination of all forces acting on an object
- 9. A push or pull that acts on an a=object, measured in newtons
- 13. Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first.
- 15. The acceleration of an object is equal to the next force acting on the object divided by it's mass, F=m(a)
- 16. a measure of how hard it is to stop a moving object P= Mass time velocity (kg/m/s)