Chapter 1 Lesson 3 and 4

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Across
  1. 3. In circular motion, a force that acts perpendicular to the direction of motion, toward the center of the curve.
  2. 4. When you push against an object, the force you apply is this.
  3. 5. the forces two objects apply to each other.
  4. 7. a measure of how hard it is to stop a moving object.
  5. 10. the force of the object pushing back against you is called the
  6. 11. This word means speed and direction.
  7. 13. When one object exerts a force on a second object, the second object exerts an equal force in the opposite direction.
  8. 14. The centripetal force that holds the moon in orbit around the Earth.
Down
  1. 1. the acceleration of an object is equal to the net force acting on the object divided by the object's mass.
  2. 2. the type of collision where to objects stick together and do not bounce.
  3. 6. any motion in which an object is moving along a curved path.
  4. 8. the standard unit for force.
  5. 9. the standard unit for mass
  6. 12. the type of collision where two objects bounce off each other.