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Syllabus

Gravitation : Planets and Satellites — Syllabus

ICSE · Class 11 · Physics

What Gravitation : Planets and Satellites covers in ICSE Class 11 Physics: 4 topics, for the 2026-27 session. Part of the ICSE Class 11 Physics syllabus.

72 questions42 flashcards13 formulas & key relations5 concepts

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An illustration showing a planet orbiting the Sun in an elliptical path, with the Sun located at one of the foci of the ellipse. Labels indicate the Sun, the planet, and the elliptical orbit.
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4 Topics · ICSE Class 11 Physics · 2026-27

Topics in Gravitation : Planets and Satellites

1

1. Kepler's Laws and Planetary Motion

  • The solar system has eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
  • Mercury is the closest planet to the Sun and Neptune is the farthest.
  • Saturn has the maximum number of satellites.
2

2. Newton's Universal Law of Gravitation and Gravitational Constant

  • Every particle in the universe attracts every other particle.
  • Gravitation is the general force between any two bodies.
  • Gravity is the special case of gravitation when one body is the Earth.
3

3. Acceleration Due to Gravity and Earth's Mass and Density

  • Acceleration due to gravity is the rate of increase of velocity of a body falling freely towards the Earth.
  • It is denoted by g.
  • g does not depend on the mass of the falling body.
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4. Variation of g with Altitude, Depth, Latitude, and Shape of Earth

  • g decreases with altitude.
  • At height h much smaller than Re, the decrease in g is approximately 2gh/Re.
  • At height h = Re, g becomes one-fourth.

Key Concepts

Central concept: Gravitation and the motion of planets and satellites under gravitational force

Kepler's LawsNewton's Universal Law of GravitationGravitational Constant GGravity and acceleration due to gravity gEarth as gravitating bodyVariation of gGravitational field and field strengthGravitational potential and potential energy

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Frequently Asked Questions

What are the important topics in Gravitation : Planets and Satellites for ICSE Class 11 Physics?
Key topics in Gravitation : Planets and Satellites include Kepler's Laws and Planetary Motion, Newton's Universal Law of Gravitation and Gravitational Constant, Acceleration Due to Gravity and Earth's Mass and Density, Variation of g with Altitude, Depth, Latitude, and Shape of Earth. Study these first, then practise questions on each for Class 11 exams.
How should I revise Gravitation : Planets and Satellites for Class 11 exams?
Learn the core ideas first, then work through the 72 practice questions on Gravitation : Planets and Satellites. 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.

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