Physics

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Across
  1. 6. The gravitational force acting per unit mass
  2. 11. Change of velocity for every unit of time is constant
  3. 14. A substance that causes a surface to reduce friction greatly
  4. 15. A complete to-and-fro motion of a pendulum
  5. 16. a vector quantity which S.I. unit is newton(N)
  6. 18. The error that is caused due to the wrong positioning of eye level
  7. 20. The amount of matter in a body
Down
  1. 1. A force acting against a body
  2. 2. A quatity that consists of a numerical magnitude and a unit
  3. 3. Rate of change of displacement
  4. 4. The person who discovered that all objects fall at the same acceleration due to Earth's gravity
  5. 5. The measurement taken by common weighing instruments such as the spring balance and bathroom scale
  6. 7. Physical quatity that has both magnitude and direction
  7. 8. The instrument that has a main scale and a sliding vernier scale
  8. 9. The final force exerted after the addition of the different forces acting on an object
  9. 10. The reluctance of the object to change its state of rest or motion, due to its mass
  10. 12. The other method of adding non-parallel vectors other than the tip-to-tail method
  11. 13. the contact force that opposes or tends to oppose motion between surfaces in contact
  12. 17. Mass per unit volume
  13. 19. The base quatitiy of which its S.I. unit is metre.