Every object in the universe attracts every other object with a force which is inversely proportional to
square of the distance
distance
cube of the distance
product of masses
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
Calculate the gravitational force of attraction between a woman weighing 50 kg and her child of 12 kg separated by a distance of 2m.
10-8 N
10-13 N
10-11 N
10-12 N
The weight of a body of mass 5 kg is
79.0 N
49.0 N
39.0 N
69.0 N
The equation for the Universal Law of Gravitation is :
F = Gm1m2/r2
F = Gr2/ m1m2
F = G(m1/m2)r2
F = (m1m2/r2)
On the earth acceleration due to gravity, 'g' is minimum at
equator
magnetic north pole
magnetic south pole
poles
The numerical value of G is :
6.67 x 10-11 Nm2/kg2
6 x 1024 kg
6.4 x 106 m
6.67 x 10-11 Nm2/kg
For a freely falling body (falling vertically downwards) acceleration due to gravity, 'g' is
negative
positive
zero
none of these
Calculate the gravitational force on a stone of mass 10 kg.
9.8 N
98 N
101 N
0.98 N
Sensitive instruments used to measure small changes in the value of g at a given location are called
Levity meters
Manometer
Hydrometer
Gravity meter
