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Formula Sheet

Gravitation : Planets and Satellites — Formula Sheet

ICSE · Class 11 · Physics

13 formulas from Gravitation : Planets and Satellites (ICSE Class 11 Physics) on one page, grouped by topic. Includes Kepler’s third law.

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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13 Entries · 7 Sections

Formulas and Key Relations

1. Kepler’s Laws of Planetary Motion

T^2 = K r^3 or T^2 ∝ r^3

K = 2.97 × 10^-19 s^2 m^-3

2. Newton’s Universal Law of Gravitation

F = G m1 m2 / r^2

F12 = -G (m2 m1 / r^2) r̂21

G = 6.67 × 10^-11 N m^2 kg^-2

Dimensional formula of G = [M^-1 L^3 T^-2]

3. Gravity and Acceleration Due to Gravity

g = G Me / Re^2

Me = g Re^2 / G

ρ = 3g / (4π Re G)

4. Variation of g with Altitude, Depth, and Latitude

g' = g / (1 + h/Re)^2

Kepler’s third law

T^2 ∝ r^3.

F = Gm1m2/r^2.

Key relations

The earth has radius Re = 6.37×10^6 m.

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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 many formulas are in Gravitation : Planets and Satellites?
This sheet lists 13 formulas from Gravitation : Planets and Satellites, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
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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All ICSE Class 11 Physics Formula Sheet

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