Identify which forces are equal everywhere on the Earth's surface, and which forces vary with position on the Earth's surface.

Question $10$ options:

$12$

average gravitational force of the Moon

$12$

centrifugal force created by the Earth$-$Moon system

$12$

total gravitational force of the Moon

$12$

net, tide$-$producing force of the Moon

$1.$

equal everywhere on Earth's surface

$2.$

varies with position on Earth's surface