Class 9 Gravitation Quiz Set 3

1. 1 N/m² equals to

 
 
 
 

2. From the centre of the earth to the surface of the earth, the value of g varies with distance (r) as

 
 
 
 

3. What is the mass of an object whose weight is 98 N ?

 
 
 
 

4. If the mass of a planet is 10 % less than that of the earth and the radius 20 % greater than that of the earth, the acceleration due to gravity on the planet will be

 
 
 
 

5. A body floats wth 1/3 rd of its volume outside water and 3/4 th of its volume outside liquid, then the density of the liquid is

 
 
 
 

6. Pins and nails are made to have pointed ends in order to have ………………. area of contact between the pin and the given surface.

 
 
 
 

7. What is the value of ‘g’ on the surface of the sun ?
(mass of sun = 1.99 x 1030 ) and (Radius of the sun = 6.96 x 108 )

 
 
 
 

8. A body of mass 50 kg has a volume 0.0049 m³. The buoyant force on it is

 
 
 
 

9. If the relation F = G M m / d2 , the quantity G

 
 
 
 

10. If two masses A and B have their masses in the ratio 1 : 4 and their volumes are equal, then their densities have the ratio

 
 
 
 

11. Aluminium has a density of 2.7 g/cc. The mass of 15 cc of aluminium is

 
 
 
 

12. Any solid will float in water if its relative density is

 
 
 
 

13. The space in which a body experiences a force by virtue of its mass is called

 
 
 
 

14. A solid weighs 32 gf in air and 28.8 gf in water. The R.D. of the solid is

 
 
 
 

15. Masses of the earth and the mars are in the ratio 10 : 1 and their radii in the ratio 2 : 1. What will be the ratio of the weights of the same body on the surface of these planets ?

 
 
 
 

Comments

  • frolpwecerit
    Reply

    Someone essentially assist to make seriously articles I’d state. That is the very first time I frequented your web page and so far? I surprised with the analysis you made to make this particular post amazing. Wonderful process!

  • Shiloh Sharr
    Reply

    I essentially enjoy the blog article.Really thank you! Awesome.

  • Maybelle
    Reply

    My brother recommended I might like this website.
    He was once totally right. This put up actually made my day.
    You cann’t imagine simply how so much time I had spent for this info!
    Thanks!

    Feel free to visit my homepage tracfone 2022

  • Glory
    Reply

    It’s appropriate time to make some plans for the future and it is time
    to be happy. I’ve read this publish and if I may just I
    desire to suggest you some interesting issues or suggestions.
    Perhaps you could write subsequent articles referring to this
    article. I wish to read even more things about it!

    Have a look at my web blog: tracfone special coupon 2022

The maximum upload file size: 100 MB. You can upload: image. Drop file here