Force

3. contact force a force that one object can apply to another without physically touching
6. force A push or pull on one object by another that is touching it
7. force The upward force that is applied to objects when they exert a force on a surface
8. force equal forces acting on an objects in opposite directions
9. when the net force of an object is zero
10. The force that pulls objects toward each other
11. a unit of measurement that equals the force required to accelerate 1 kilogram of mass at 1 meter per second, per second
13. The force of gravity on an object at the surface of the planet
14. fall The motion of a falling object when the only force acting on it is gravity
15. resistance Friction acting upon an object moving through the air

1. The tendency of an object will reach when free falling through a substance such as air
2. The amount of matter in an object
4. force forces that produce a nonzero net force which changes an objects motion
5. The force that one surface exerts on another when the two surfaces rub against each other
6. force a force exerted toward the center of a curved path
12. forces the overall force when all the individual forces acting on it
14. a push or pull exerted on an object