physics questions read and revise

1. GB16.State the fundamental and supplementary units in SI system of units. Tabulate
2. 17.What are the significant figures? explain rules governing with an example.
3. 56 Diff. between speed and velocity of a body.
4. what are scalar and vector quantities?
5. 66.two types of collision explain
6. 70 diff.between uniform velocity and variable velocity.
7. 79 Exp.propulsion of a rocket.
8. 82 diff.bet. conservative/non conservative force
9. 96 exp.working of a jet plane/rocket
10. 95.Application of Newton"s III rd law of motion for the weightlessness of a man travelling in a lift.
11.