Forces and Fields

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Across
  1. 4. the overall force acting on an object is known as the ________ force
  2. 6. A type of field which exists because of any mass
  3. 8. The smaller this variable, the stronger the force due to gravity
  4. 9. The piece of equipment used to measure something's weight
  5. 11. When forces on an object are balanced, that object is said to be in a state of ________
  6. 13. A substance which reduces friction between surfaces when they rub together
  7. 14. The type of force caused by fields
  8. 15. The direction in which the car in figure 1 is accelerating
Down
  1. 1. A force caused by contact between two rough surfaces
  2. 2. The greater this variable, the stronger the force due to gravity
  3. 3. Forces act to change the speed or ________ of an object
  4. 5. If an object is accelerating, forces acting on that object must be ________
  5. 7. A force caused by collisions with air particles
  6. 10. The force due to gravity
  7. 12. The unit that force is measured in