Across
- 3. is needed for force to work
- 4. Force Equal forces acting on an object in opposite directions
- 5. "An object at rest will remain at rest, and an object moving at a constant velocity will continue moving at a constant velocit, unless it is acted upon by an unbalanced force." Another name is Law of Inertia
- 8. "If one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object."
- 10. Force Forces that produce a nonzero net force, which changes an objects motion
- 11. The distance an object travels per unit of time
- 12. The force of gravity on an object at the surface of a planet
- 13. Speed in a given direction
- 14. The overall force on an object when all the individual forces acting on it are added together
- 16. The name often given to the force exerted by the first object on a second object
- 18. "The total momentum of any group of objects remains the same, or is conserved, unless outside forces acts on the objects."
- 20. The state in which one object's distance from another is changing
- 21. A unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second
Down
- 1. The rate at which velocity changes
- 2. The force that pulls objects toward each other
- 5. "Acceleration depends on the objects mass and on the netforce acting on the object."
- 6. The amount of inertia depends on this
- 7. A push or pull exerted on an object
- 9. The force that one surface exerts on another when the two surfaces rub against each other
- 15. The tendency of an object to resist any change in its motion
- 17. The product of an objects mass and velocity
- 19. The name often given to the force exerted by the first object on a second object