Month: July 2025

INVERSE SQUARE LAW – A principle stating that gravitational force decreases with the square of the distance.

CENTRIPETAL FORCE – The inward force that keeps an object moving in a circular path, such as a planet orbiting a star.

ESCAPE VELOCITY – The minimum velocity an object needs to break free from a celestial body’s gravitational pull.

ACCELERATION DUE TO GRAVITY (g) – The acceleration an object experiences due to Earth’s gravitational pull (≈9.8 m/s²).

WEIGHT – The force of gravity acting on an object’s mass.

MASS – The amount of matter in an object, determining its gravitational pull.

UNIVERSAL LAW OF GRAVITATION – The force of gravity is proportional to the masses of two objects and inversely proportional to the square of their distance.

GRAVITATIONAL FORCE – The force of attraction between two objects with mass.

NEWTON’S THIRD LAW (ACTION-REACTION LAW) – For every action, there is an equal and opposite reaction.

NEWTON’S SECOND LAW (FORCE EQUATION) – The force acting on an object equals its mass times acceleration (F = ma).