Orbits of planets and satellites (AQA A-Level Physics): Quizzes

$T^2 \propto r^3$

$G$ and $M$ only

$v = \frac{2\pi r}{T}$

Loses GPE, gains KE

$v = \sqrt{\frac{2GM}{r}}$

The object's mass

Orbit with 24-hour period

Directly above the equator

~42,000 km

Smaller radius and faster