mein self

The earth can be regarded as a ………. . 22.clock

1. The age of universe is ……… s. 23.2 x 1018
   24…….. is the language of physics. 24.Mathematics
2. There are ……. seconds in one year. 25.3.17 x 107
3. The size of the universe is ……… time larger than that of an elementary particle. 26.1041
4. A 45 mih-1 is equal to …….. fts-1. 27.66
   28.A metre stick is …. than the yard stick. 28.longer
5. One gram is equal to …. kg. 29.10-3
6. Physics is the subject which studies ………. phenomena. 30.natural

Key>>>
1.unit 2. standard 3. basic 4.derived 5. FPS 6.time
7.gram 8. length 9.m^210. British system 11. 5.068 × 〖10〗^3

1.vector 2. force 3. zero 4.force 5. vector component 6.opposite
7.cector 8. scalar 9. same 10. opposite 11. magnitudes 12. vector

1. displacement 14.vector 15. scalar 16. resultant 17. resultant 18. resolution of a vector 19. arrow 20. different 21. same
2. greater 23. resultant 24. 13N 25. 70.71 units
   True\False
   1.A physical quantity which has direction as well as magnitude