gravitational fields

Question 1

State what is represented by gravitational field lines.

Answer 1

Gravitational field lines show the direction (and relative magnitude) of force on a mass (placed in the force field) ✔
Or
The direction a stationary/placed mass would (initially) move.

Question 2

Suggest why the field lines converge over a small area at K.

uniform lines other than at K

Answer 2

(Lines are closer together so) the field is stronger ✔

(Material forming the Earth) at K has a high(er) density (than the surrounding material) ✔