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Formula Sheet

Gravitation : Planets and Satellites

ICSE · Class 11 · Physics

All formulas from Gravitation : Planets and Satellites in ICSE Class 11 Physics. Key equations, constants, and identities for board exam preparation.

72 questions42 flashcards5 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 Formulas · 4 Sections

Formulas

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

g' = g (1 - h/Re)

g' = g - Re ω^2 cos^2 λ

g' = g - (2gh)/Re

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Frequently Asked Questions

What are the important topics in Gravitation : Planets and Satellites for ICSE Class 11 Physics?
Gravitation : Planets and Satellites covers several key topics that are frequently asked in ICSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Gravitation : Planets and Satellites — ICSE Class 11 Physics?
Understand the core concepts first, then work through the 72 practice questions available for this chapter. Revise formulas and 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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