This post contains 9th Class Physics Chapter 5 Solved MCQs for students. This chapter’s name is Gravitation. These Multiple Choice Questions from Chapter 5 Physics of Class 9 are presented here for practice purpose. Students should also check Chapterwise 9th Class Physics Solved MCQs. I have taken these Class 9 Physics Chapter 5 MCQs with Answers from Al-Hassan Super Notes Physics (English Medium) – IX. I will suggest students to go through these Importatnt MCQs from Gravitation Chapter before attempting exams.
Gravitation: Physics 9th Class Chapter 5 Solved MCQs
You may also like: 9th Physics Chapter 5 Short Questions & Numericals
1. The value of “g” at a height of Earth’s radius above the surface of the Earth is:
(A) 2g
(B) ½ g
(C) 1/3 g
(D) ¼ g
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ](D) ¼ g[/bg_collapse]
2. Earth’s gravitational force vanishes at:
(A) 6400 km
(B) Infinity
(C) 42300 Km
(D) 1000 km
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ](B) Infinity[/bg_collapse]
3. Moon completes its one revolution around the earth in:
(A) One day
(B) 17.3 days
(C) 22.3 days
(D) 27.3 days
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ](D) 27.3 days[/bg_collapse]
4. The orbital speed of a low orbit satellite is:
(A) Zero
(B) 8 Km/s
(C) 800 ms-¹
(D) 8000 ms-¹
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ](B) 8 Km/s[/bg_collapse]
5. The value of “g” at the moon is:
(A) 1.7 ms-²
(B) 1.6 ms-²
(C) 10 ms-²
(D) 9.8 ms-²
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ](B) 1.6 ms-²[/bg_collapse]
6. A force which is inversely proportional to the square the distance between the centers of bodies is:
(A)Frictional force
(B) Centrifugal force
(C) Centripetal force
(D) Gravitational force
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ](D) Gravitational force[/bg_collapse]
7. The centre of gravity of an irregular shaped body can be found with the help of:
(A) Screw gauge
(B) Plumbline
(C) Meter rod
(D) Wedge
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ](B) Plumbline[/bg_collapse]
8. Value of “g” increases with the:
(A) Increase in the mass of the body
(B) Increase in altitude
(C) Decrease in altitude
(D) None of the above
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ](C) Decrease in altitude[/bg_collapse]
9. The value of “g” at a height one Earth’s radius above the surface of the Earth is:
(A) 2 g
(B) ½ g
(C) 1/3 g
(D) ¼ g
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ](D) ¼ g[/bg_collapse]
10. The value of “g” on the moon’s surface is 1.6ms-². What will be the weight of a 100 kg body on the surface of the moon?
(A) 100 N
(B) 160 N
(C) 1000 N
(D) 1600 N
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ](B) 160 N[/bg_collapse]
Relevant Notes