Gravitation for JEE

• Gravity is an inverse-square, attractive, central force
• g decreases with height and with depth
• Total energy of a bound orbit is negative
• Kepler's 2nd law is conservation of angular momentum

• F = Gm₁m₂/r²
• g at height h ≈ g(1 − 2h/R) for h ≪ R; at depth d: g(1 − d/R)
• Orbital speed v = √(GM/r); escape speed = √(2GM/R)
• T² ∝ r³

Printable Gravitation formula sheet: formulas, key ideas and traps on one page. Save it as a PDF for offline revision.

• Using the h ≪ R approximation for large heights
• Confusing potential (−GM/r) with potential energy (−GMm/r)
• Using surface radius instead of orbital radius

Appears frequently. Usually one direct question. Satellite energy and escape velocity are favourites.

Prerequisites: Laws of Motion and Friction.

Full-chapter free lectures picked from YouTube search results by views, from established JEE channels (mostly in Hinglish). Use the subtopic list to jump straight to the part you need (timestamps come from each video's own chapter list). Watch one, then solve PYQs the same day.

• GRAVITATION in 1 Shot: All Concepts & PYQs Covered || JEE Main & Advanced — JEE Wallah, 4:07:09
  Jump to a subtopic (11)

  • 00:00 Introduction
  • 03:43 Gravitational Force
  • 31:52 Gravitational Field
  • 58:55 Variation of ‘g’
  • 1:24:52 Gravitational potential energy
  • 2:12:58 Newton’s law of gravitation
  • 2:13:30 Analogy between electrostatics and gravitation
  • 2:41:07 Satellite motion
  • 3:28:12 Kepler’s law
  • 3:55:50 Binary star
  • 4:06:36 Thank You Bacchon
• Gravitation FULL CHAPTER | Class 11th Physics | Arjuna JEE — Arjuna JEE, 4:49:24
  Jump to a subtopic (20)

  • 00:00 Introduction
  • 02:06 Universal Law of Gravitation
  • 04:29 Gravitational Force in Vector From
  • 19:00 Properties
  • 33:56 Gravitational Force Between Discreet Masses
  • 1:06:21 Gravitational Force Between Continuous Masses
  • 1:12:17 Gravitational Field
  • 1:31:30 Gravitational Potential Energy
  • 1:49:23 Gravitational Potential
  • 1:57:32 Gravitational Field & Potential Due to Hollow Sphere
  • 2:13:58 Gravitational Field & Potential Due to Solid Sphere
  • 2:58:19 Gravitational Potential Energy of System of Particles
  • 3:00:29 Variation in Acceleration Due to Gravity of Earth
  • 3:42:06 Acceleration Due to Gravity of Unknow Planets
  • 3:50:33 Escape Velocity
  • 4:06:41 Orbital Velocity
  • 4:22:28 Types of Satellites
  • 4:29:00 Ellipse
  • 4:33:00 Kepler 's Laws
  • 4:48:53 Thank you, bacchon!

• 5 JEE Main 2026 PYQs on Gravitation, with solutions.
• Read the chapter in NCERT textbooks (official, free), then solve its NCERT Exemplar (official, free) questions.
• Chapter-wise past questions: JEE Main and Advanced PYQs and question bank.
• Timed practice tests: NTA Abhyas practice tests (official, free) and our free mock tests.
• See it move: interactive simulation.