Forces

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Across
  1. 3. Happens when the net force acting on an object is NOT zero
  2. 5. This type of friction prevents objects from sliding when they are at rest
  3. 7. The units used to measure mass
  4. 11. The direction of a normal force is always ___________ to the surface
  5. 12. Another word for the force of gravity acting on an object
  6. 14. An object can move with __________ velocity when in equilibrium
Down
  1. 1. The roughness between two materials is measured by the _________ of friction
  2. 2. The weight of an object is due to the force of __________
  3. 4. When all forces acting on an object are balanced
  4. 6. A force exerted on an object by a person or another object
  5. 8. The units all forces are measured with
  6. 9. This type of friction slows down moving objects
  7. 10. For all objects on Earth, the direction of the force of gravity is always ____________
  8. 13. The _________ force is the reaction or support force of a surface pushing back on an object