Skip to main content
Super TutorResources
Chapter 15 of 29
Revision Notes

Gravitation — Revision Notes

Telangana Open School (TOSS) · Class 12 · Physics

Gravitation revision notes for Telangana Open School (TOSS) Class 12 Physics: 4 topics in quick points. Includes Newton's Law of Gravitation.

54 questions30 flashcards8 formulas & key relations5 concepts

Interactive on Super Tutor

Studying Gravitation? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for revision notes and more.

Try Super Tutor — Free

Free trial, no card needed.

Key Topics to Revise

1

Newton's Law of Gravitation

  • Every object in the universe attracts every other object with a gravitational force.
  • The force is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
  • The force is always attractive and acts along the line joining the centers of the two masses.
2

Gravitational Field and Potential Energy

  • A gravitational field exists around any mass where another mass experiences gravitational force.
  • Gravitational field strength is the force per unit mass at a point in the field.
  • Gravitational potential energy is the work done in bringing a unit mass from infinity to a point in the gravitational field.
3

Acceleration Due to Gravity (g)

  • Acceleration due to gravity (g) is the acceleration produced in a body due to Earth’s gravitational pull.
  • Its value on Earth’s surface is approximately 9.8 m/s².
  • g is independent of the mass of the falling body — all objects fall at the same rate in vacuum.
4

Kepler's Laws and Satellite Motion

  • Kepler’s First Law: Planets move in elliptical orbits with the Sun at one focus.
  • Kepler’s Second Law: The line joining a planet to the Sun sweeps equal areas in equal times.
  • Kepler’s Third Law: The square of the orbital period is proportional to the cube of the semi-major axis.

Get complete notes with diagrams and examples

Full Notes

Key Concepts

Every object in the universe attractsThe acceleration experienced by a bodyThe value of 'g' decreases1Orbital velocity is the speed required

Frequently Asked Questions

What are the important topics in Gravitation for Telangana Open School (TOSS) Class 12 Physics?
Key topics in Gravitation include Newton's Law of Gravitation, Gravitational Field and Potential Energy, Acceleration Due to Gravity (g), Kepler's Laws and Satellite Motion. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Gravitation for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 54 practice questions on Gravitation. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Gravitation

All Telangana Open School (TOSS) Class 12 Physics Revision Notes

For serious students

Get the full Gravitation chapter — start free.

Quizzes, flashcards, an AI doubt solver and a study plan for Telangana Open School (TOSS) Class 12 Physics. Free to start, no card needed.

Try Super Tutor Free
Try this chapter free