Gravitational fields (AQA A-Level Physics): Flashcards

Region around mass where another mass feels gravitational force

Force per unit mass at a point

$N/kg$ (newtons per kilogram)

$g = \frac{F}{m}$

$g = \frac{GM}{r^2}$

Constant everywhere

Varies with distance from centre

$6.674 \times 10^{-11} \, \text{Nm}^2/\text{kg}^2$

Parallel, equally spaced, same direction

Decreases with square of distance (inverse-square law)