The Law of Gravitation:

Was formulated by Sir Isaac Newton in the late 17th century. It describes the force of attraction between any two objects in the universe.

Key Points:

  • Universal Law: The law of gravitation is a universal law, meaning it applies to all objects in the universe, regardless of their size or distance.

  • Attractive Force: Gravity is an attractive force, meaning it pulls objects towards each other.

  • Proportional to Mass: The strength of the gravitational force between two objects is proportional to the product of their masses.

  • Inversely Proportional to Distance: The strength of the gravitational force between two objects is inversely proportional to the square of the distance between them.  

  • Formula: The mathematical expression of the law of gravitation is:

    • F = G * m1 * m2 / r²

      • F is the gravitational force between the two objects.

      • G is the gravitational constant, a universal constant that has a value of approximately 6.67 × 10^-11 Nm²/kg².

      • m1 and m2 are the masses of the two objects.

      • r is the distance between the centers of the two objects.










Applications of the Law of Gravitation:

  • Motion of planets: The law of gravitation explains the motion of planets around the sun and the moon around the Earth.

  • Tides: The tides on Earth are caused by the gravitational pull of the moon and the sun.

  • Space exploration: Understanding the law of gravitation is essential for launching and navigating spacecraft.

In summary, the law of gravitation is a fundamental law of physics that describes the force of attraction between any two objects in the universe. It has numerous applications in various fields of science and engineering.