FIB : 1. To every ____ there is an ____ and ____ reaction. 2. The SI unit of momentum is ____.

Question

Fill in the blanks

1. To every ____ there is an ____ and ____ reaction.
2. The SI unit of momentum is ____.
3. In nature forces always occur in ____.
4. Newton’s first law holds good in the ____ frame.
5. ____ provides the measure of the inertia of a body.
6. A rocket works on the principle of conservation of ____.
7. SI unit of force is ____.
8. The ratio of the SI to the CGS unit of force is ____.
9. In any collision, the principle of conservation of  ____ along holds.
10. Action and reaction always act on two ____ bodies.
11. In collision and explosions, the total ____ remains constant, provided that no external ____ acts.

Answer

1. action, equal, opposite
2. kgm/s
3. pairs
4. inertial
5. mass
6. momentum
7. Newton (N)
8. 10⁵
9. momentum
10. different
11. momentum, force