class 9th chapter 9 objective question .

https://nexttopperinstitute.blogspot.com/2020/07/class-9-chapter-9-physics-all-video.html
CLASS 9TH ALL VIDEO 

 1.What is conservation of momentum ? explain and proof .

2. what is newtons third law of motion 
a. it is action reaction pair 
b. it is not action reaction pairs 
c. it is both above 
d. none of these 
3. what is change in momentum per unit time 
a. newton second law of motion 
b. newton first la of motion 
c.newton third law of motion 
d. none of these 
4. what is momentum 
a. mv  b. ma c. m d. none of these 
5. what is force ?
a. push                 b. pull       c both                d . none of these 
6.  what is unit of force ? 
a. newton/sec    b. kg            c kg m                d.  kg m/S2 
MORE QUESTIONS 
https://nexttopperinstitute.blogspot.com/2020/07/class-9-chapter-9-objective-question.html

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