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

$T^2 \propto r^3$

The satellite must pass over both poles

The gravitational force from the planet

$m_1 = \frac{r^3\omega^2}{G}$

Orbital speed increases

$E_{total} = -\frac{GMm}{2r}$

Only the planet's mass and radius

They can observe entire Earth surface daily

It speeds up as it spirals inward

KE equals half the magnitude of PE