Physics grade 9

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Across
  1. 2. when 2 or more cells connected together
  2. 5. it is a virtual line which is perpendicular to the mirror line
  3. 9. these objects possess light energy
  4. 11. to open or close a circuit
  5. 12. the ........ of a thermometer contains the mercury.
  6. 14. when the right hand side be omes the left hand side and vice versa
  7. 15. a physical quantity consists of a unit and a.............
  8. 16. SI unit of time
  9. 17. an instrument of time
  10. 19. unit of power
  11. 22. the incident and reflected angles are........
  12. 23. it always opposes motion
  13. 24. the unit of force
Down
  1. 1. this error occurs due to the wrong position of the eye
  2. 3. capacity to do work
  3. 4. water flows out through it when the irregular object is placed in the displacement can
  4. 6. it is a thermometric liquid
  5. 7. the method to determine the volume of an irregular solid
  6. 8. amount of substance in a body
  7. 10. sound energy is produced by .......... objects.
  8. 13. The .......... of a laboratory thermometer is 0 to 100 C.
  9. 15. curved surface of a liquid
  10. 18. unit of kinetic energy
  11. 20. a force of 20 N acts on an object through a distance of 100 cm, the work done is
  12. 21. time taken for an oscillation