A-Level Physics Specification

OCR A H556

Section 5.4.3: Planetary motion

Are you studying this syllabus?

You can track your progress by adding it to your account.

Add syllabus

#5.4.3a

Kepler’s three laws of planetary motion

#5.4.3b

the centripetal force on a planet is provided by the gravitational force between it and the Sun

#5.4.3c

the equation \(T^2 = \bigg(\dfrac{4π^2}{GM}\bigg)r^3 \)

Learners will also be expected to derive this equation from first principles.

#5.4.3d

the relationship for Kepler’s third law \(T^2 ∝ r^3 \) applied to systems other than our solar system

#5.4.3e

geostationary orbit; uses of geostationary satellites.