If height from the ground increases, the value of g ?
Increases
Decreases
Doubles
No change
The acceleration due to gravity is zero at
The equator
The poles
The sea level
The centre of the earth
Every object in the universe attracts every other object with a force which is inversely proportional to
Square of the distance
Cube of the distance
Distance
Two times the distance
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
Examples of unstable equilibrium is
Walking on the road
Reading
Riding a cycle on the rope
Swimming
The fixed path in which the satellite moves round the planet is called
Circle
Orbit
Shell
radius
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
Name the fundamental force which holds the planets in their orbits around the sun:
Gravitational force of attraction
Electrostatic force of attraction
Nuclear force of attraction
None of these