vocab

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Across
  1. 3. the amount of matter in an object
  2. 5. the force of gravity on an object at the surface of the planet
  3. 6. the force that one surface exerts on another when the two surfaces rub against each other
  4. 10. forces that produce a nonzero net force, which changes an object's motion
  5. 13. The maximum speed an object will reach when free-falling through a substance, such as air
  6. 16. The upward force that is applied to objects when they exert a force on a surface
  7. 18. A push or pull on one object by another that is touching it
Down
  1. 1. Friction acting upon an object moving through the air
  2. 2. A unit of measurement that equals the force required to accelerate 1 kilogram of mass at 1 meter per second, per second
  3. 4. When the net force of an object is zero
  4. 7. the force that pulls objects toward each other
  5. 8. A force exerted toward the center of a curved path
  6. 9. equal forces acting on an object in opposite directions
  7. 11. Fall the motion of a falling object when the only force acting on it is gravity
  8. 12. the overall force on an object when all the individual forces acting on it are added together
  9. 14. A force that one object can apply to another without physically touching
  10. 15. a push or pull exerted on an object
  11. 17. The tendency of an object to resist any change in its motion