Which one of the following is attracted towards the earth with greater force ?
Empty bottle
Bottle containing full of water
Bottle containing half filled water
None
If the mass of a person is 60 kg, What about the force when he is on moon ?
178.5 N
71.5 N
96.56 N
97.2 N
The velocity of freely falling object at the end of 8 seconds is
78. 4 m /s
58.8 m/s
39.2 m/s
76.6m/s
The weight of a body on the moon is one - sixth of its weight on the earth.How will the mass of the body vary ?
Becomes 1/6 th
Remains the same
Becomes 6 times
Becomes 1/8 th
S.I unit of gravitation constant 'G' is
Nm2 kg2
Nm2/kg2
N/m2 kg2
N/m2 kg-2
The minimum velocity that an object should possess to escape from the gravitational field of earth is called
Orbital velocity
Escape velocity
Uniform velocity
Retardation
The mass of a body is measured to be 12 kg on The Earth. If it is taken to moon, the mass will be
72 kg
2 kg
12 kg
24 kg
Every object has a point where all its weight is considered to be concentrated, this point is called
Acceleration due to gravity
Midpoint
Gravitational force
Centre of gravity
The force with which all bodies are attracted towards the centre of earth is called
Repulsive force
Attractive force
Vacuum force
