Newton’s Universal Law of Gravitation

If the distance is doubled the force decreases by a factor of four. Prove it.

What is the universal law of gravity?

The gravitational force between two objects on the earth is $2 \mathrm{N}$. What will be the gravitational force between these two objects on the surface of the moon?

Based on Kepler's planetary motion Newton has postulated that inverse square law means $F\alpha \frac{1}{r{ }^2}$.

_____ (Air Resistance/Gravitational/Natural) force is the source of centripetal force that a planet requires revolving around the Sun.

Which of Kepler's Laws of planetary motion led Newton to establish the inverse-square rule for the gravitational force between two bodies?

The centripetal force acting on a satellite revolving around the earth is $\mathrm{F}$. The gravitational force on that planet is also $\mathrm{F}$. The resultant force on the satellite is

Derive the inverse relation of the gravitational force between two bodies using Kepler's law. 

The value of the universal gravitational constant is _____$\times {10}^{-11} \mathrm{N} {\mathrm{m}}^2 {\mathrm{kg}}^{-2}$. (Answer upto two decimal places).

What is the value of the universal gravitational constant?

Gravitational force is the strongest force.

The force of attraction between two unit masses separated by a unit distance is called

Write the Universal Law of Gravitation.

Two bodies of $1 \mathrm{k}g$ each are at a distance $1 \mathrm{m}$ from each other. Write the value of gravitational force between them.