S.I unit of gravitation constant 'G' is
Nm2 kg2
Nm2/kg2
N/m2 kg2
N/m2 kg-2
The earth's gravitational force causes an acceleration of 5m/s2 in a 1 kg mass somewhere in space.How much will the acceleration of a 3kg mass be at the same place?
15 m/s2
10 m/s2
5 m/s2
3 m/s2
The density of copper is 8.9 g cm-3.Calculate the relative density of copper.
9.8
8.9
7.5
1
Every object in the universe attracts every other object with a force which is inversly proportional to
square of the distance
cube of the distance
distance
two times the distance
If the masses of both the object are doubled, the gravitational force of attraction is
Doubled
Halved
Becomes 4times
Becomes (1/4)th
Who gave three laws of planetary motion?
Newton
Kepler
Einstein
Galileo
An apple falls towards the earth because the earth attracts it.The apple also attracts the earth by the same force.Why do we not see the earth rising towards the apple?
Acceleration of the earth is very large when compared to that of apple
Acceleration of the earth is equal to that of apple
Acceleration of the earth is neither high nor too low
Acceleration of the earth is very small when compared to that of apple
If m1 and m2 are the masses of two bodies and distance between them is reduced to 1/4 then what will be the gravitational force___________
16 times
12 times
4 times
10 times
A solid of weight 22 N is dipped in water.If the weight of the solid in water is 20 N,what is the relative density of the solid ?
2
5
11
14
S.I unit of weight is:
kg
N
N/kg
N/m
