Overview
Gravitational forces play a crucial role in astronomy, governing the motion of celestial bodies and the structure of the universe. Understanding these forces helps us comprehend how planets, stars, and galaxies interact with one another. Newton's Law of Universal Gravitation provides a foundational ...
Key Terms
Example: The gravitational force between Earth and the Moon keeps the Moon in orbit.
Example: A car has a mass of about 1,500 kg.
Example: An object with a mass of 10 kg weighs about 98 N on Earth.
Example: Orbital mechanics helps us calculate satellite trajectories.
Example: The Moon's gravity causes tides in Earth's oceans.
Example: The black hole at the center of our galaxy is called Sagittarius A*.
Related Topics
Astrophysics
The study of the physical properties and behavior of celestial bodies and the universe.
advancedCosmology
The science of the origin and development of the universe, including the laws governing it.
advancedOrbital Dynamics
The study of the motion of objects in space, particularly under the influence of gravitational forces.
intermediateKey Concepts
Newton's Law of Universal GravitationGravity in SpaceTidal ForcesBlack Holes