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