MCQ Set 2 from Gravitation
MCQ on Gravitation pdf>> This is the second set of multiple choice questions with answers from chapter gravitation. These objective questions are very useful for any competitive examinations like SSC, CGL, CHSL Railway Group C & D and obviously for UPSC or IAS. So my dear aspirants i hope this will help you for preparing for govt job exams.
Before trying these questions as a quiz I would suggest you to read the important general knowledge from gravitation from the link given bellow.
Q.1 Gravitation force between two masses m1 and m2 is proportional to –
A: m1+m2
B: m1-m2
C: m1÷m2
D: m1×m2
Answer
m1×m2
Q.2 Two masses m1 and m2 are kept at a distance R. Gravitation force between them is proportional to –
A: R
B: 1/R
C: 1/R2
D: R2
Answer
1/R2
Q.3 Observe the following figures and answer the question.
Which figure showing gravitational vs distance graph is correct?
A: option A
B: option B
C: option C
D: option D
Answer
Option C is correct.
Q.4 Gravitational potential is –
A: proportional to distance
B: inversely proportional to distance
C: proportional to the square of the distance
D: inversely proportional to the square of the distance
Answer
inversely proportional to distance.
Q.5 What is the escape velocity of moon?
A: 2.00 Km/sec
B: 2.38 km/sec
C: 3.28 km/sec
D: 2.83 km/sec
Answer
2.38 km/sec
Q.6 What is the escape velocity of sun?
A: 618 km/sec
B: 200 km/sec
C: 322 km/sec
D: 465 km/sec
Answer
618 km/sec
Q.7 If we through a ball upward then gravitational acceleration on the ball will be –
A: zero
B: positive
C: negative
D: negligible
Answer
negative
Q.8 If we double the distance between two objects, gravitational force will be
A: double
B: half
C: one fourth
D: 4 times greater
Answer
one fourth
Q.9 Which of the following statement(s) is/are correct?
1> value of gravitational acceleration decreases with height or depth from earth’s surface.
2> gravitational acceleration is maximum at pole.
3> value of gravitational acceleration increase due to rotation of earth.
4> If angular speed of earth become 17 times its present value, a body on the equator becomes weightless.
A: Only option 1 is correct;
B: Options 1 and 2 are correct;
C: Option 1, 2 and 3 are correct;
D: options 1, 2 and 4 are correct;
Answer
Options 1, 2 and 4 are correct
Q.10 If we double the mass of an artificial satellite then its orbital speed –
A: will be double:
B: will be half of its initial speed;
C: will be one fourth of its initial speed:
D: is independent of its mass;
Answer
Ans D independent of its mass
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