Flash Card
The square of orbital period of revolution of a planet is directly proportional to the_____of the mean distance of the planet from the sun.
The earth revolves around the Sun in one year.If the distance between them becomes double,the new period of revolution will be
When distance between two objects is decreased by d times, the gravitational force between them increases 4 times. The value of d is ________.
Acceleration of an object throw upwards is always taken _______as it moves against the force of gravity.
If mass of one of two objects is doubled then the gravitational force acting between the two is _______
Escape velocity on a planet is ve. If radius of the planet remains same and mass becomes 4 times, the escape velocity becomes
A boy is whirling a stone tied to a string in a horizontal circular path. If the string breaks, the stone
Accordinfg to Kepler,the period of revolution of a planet(T) and its mean distance grom the sun(r) are related by the equation
Which is the gravitational potential energy of an object located 20,000m above the earth’s surface ?
The value of g on moon 1/6th of its value on the earth. If a person weighs 14 N on the moon’s surface, then the weight of the person on earth’s surface is
The minimum velocity of the spacecraft to escape from earth’s gravitational force must be ______.
If earth’s satellite is moved from one stable orbit to a father stable orbit, then which of the following quantities increase?
In SI units, the value of G is equal to the _______ between two masses of 1 kg kept 1 m apart.
The gravitational force between two bodies is directly proportional to the product of the masses of those bodies and is_________of the distance between them