Advertisements
Advertisements
Question
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.
Options
inversely proportional to the square
directly proportional to the square
inversely proportional to the cube
inversely proportional to the square root
Advertisements
Solution
The gravitational force between two bodies is directly proportional to the product of the masses of those bodies and is inversely proportional to the square of the distance between them.
APPEARS IN
RELATED QUESTIONS
What happens to the force between two objects, if the distance between the objects is doubled and tripled?
Answer the following:
An astronaut inside a small space ship orbiting around the earth cannot detect gravity. If the space station orbiting around the earth has a large size, can he hope to detect gravity?
If you compare the gravitational force on the Earth due to the Sun to that due to the Moon, you would find that the Sun’s pull is greater than the Moon’s pull. (You can check this yourself using the data available in the succeeding exercises). However, the tidal effect of the Moon’s pull is greater than the tidal effect of Sun. Why?
Choose the correct alternative:
Acceleration due to gravity is independent of mass of the earth/mass of the body.
State and explain Kepler's laws of planetary motion. Draw diagrams to illustrate these laws.
Can you think of two particles which do not exert gravitational force on each other?
A person brings a mass of 1 kg from infinity to a point A. Initially the mass was at rest but it moves at a speed of 2 m s −1 as it reaches A. The work done by the person on the mass is −3 J. The potential at A is
Let V and E represent the gravitational potential and field at a distance r from the centre of a uniform solid sphere. Consider the two statements:
(A) the plot of V against r is discontinuous.
(B) The plot of E against r is discontinuous.
Three uniform spheres each having a mass M and radius a are kept in such a way that each touches the other two. Find the magnitude of the gravitational force on any of the spheres due to the other two.
A solid sphere of mass m and radius r is placed inside a hollow thin spherical shell of mass M and radius R as shown in the following figure . A particle of mass m' is placed on the line joining the two centres at a distance x from the point of contact of the sphere and the shell. Find the magnitude of the resultant gravitational force on this particle due to the sphere and the shell if (a) r < x < 2r, (b) 2r < x < 2R and (c) x > 2R.

At what height above the earth's surface would the value of acceleration due to gravity be half of what it is on the surface? Take the radius of earth to be R.
Gravity is another kind of ________. It exerts all through the ________. The Sun's gravity keeps the ___________ in their orbits. Gravity can only be felt with very large ________.
Explain the difference between g and G.
State Newton's law of gravitation. What is the difference between:
g and G?
Show that gravity decreases at higher altitudes.
The value of universal gravitational constant (G) in the SI unit is ______.
To project the rockets which of the following principle(s) is /(are) required?
Law of gravitation gives the gravitational force between
Six point masses of mass m each are at the vertices of a regular hexagon of side l. Calculate the force on any of the masses.
