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physics-9-chapter-4-turning-effect-of-force-2
1.
Which of the following is correct statement about force of gravitation?
a) F α m
1
x m
2
b) F α 1 - d
2
c) F α (m
1
+ m
2
) / d
2
d) F = [k (m
1
x m
2
)] / d
2
2.
Which of the following is correct statement about force of gravitation?
a) F α 1 / d
2
b) F α 1 - d
2
c) F α (m
1
+ m
2
) / d
2
d) F = [k (m
1
x m
2
)] / d
2
3.
Which of the following is correct statement about force of gravitation?
a) F α (m
1
x m
2
) / d
2
b) F α 1 - d
2
c) F α (m
1
+ m
2
) / d
2
d) F = [k (m
1
x m
2
)] / d
2
4.
Find the gravitational force of attraction between two spheres each of mass 1000 kg. The distance between the centres of the spheres is 0.5 m?
a) 2.67 x 10
-4
N
b) 2.67 x 10
-3
N
c) 2.67 x 10
-2
N
d) 2.67 x 10
-1
N
5.
Which of the following is correct statement about force of gravitation?
a) F = [G (m
1
x m
2
)] / d
2
b) F α 1 - d
2
c) F α (m
1
+ m
2
) / d
2
d) F = [k (m
1
x m
2
)] / d
2
6.
Which of the following is CORRECT about force of gravitation?
a) Force is directly proportional to the product of masses
b) Force is inversely proportional to the product of masses
c) Force is directly proportional to the sum of masses
d) Force is inversely proportional to the sum of masses
7.
Which of the following is inversely proportional to the force of gravitation?
a) The square of distance between centres of masses
b) The product of masses
c) The sum of masses
d) The product of distance between centres of masses
8.
According to the law of gravitation, the gravitational force of attraction F, which of the following relation is correct?
a) F α m
1
x m
2
b) F α m
1
+ m
2
c) F α m
1
- m
2
d) F α m
1
/ m
2
9.
According to the law of gravitation, the gravitational force of attraction F, which of the following relation is correct?
a) F α 1 / d
2
b) F α 1 - d
2
c) F α 1 + d
2
d) F α 1 x d
2
10.
According to the law of gravitation, the gravitational force of attraction F, which of the following relation is correct?
a) F α (m
1
x m
2
) / d
2
b) F α (m
1
+ m
2
) / d
2
c) F α (m
1
x m
2
) + d
2
d) F α (m
1
+ m
2
) + d
2
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