Gravity

Question 1

Gravitational fields

Answer 1

A region where mass experiences force

Question 2

Gravitational field strength

Answer 2

Force per unit mass

Question 3

Newtons law of gravitation

Answer 3

Gravitational force between 2 point mass is proportional to the product of the masses and indirectly proportional to the square of their seperation.

Question 4

Gravitational field strength formula

Answer 4

G= f/m

Question 5

Gravitational force between two point masses equation (newtons law)

Answer 5

F= Gm1m2/r^2

Question 6

Keplers third law equation

Answer 6

V=2pir/T therefore substituting v^2=GM/r =. T^2=4pi^2r^3/GM

Question 7

Gravitational field strength + newtons law equation

Answer 7

F= GM/r^2. Because g=f/m ad f here is substituted with newtons law

Question 8

Geostationary orbits

Answer 8

-follows an equatorial orbit,
-where the satellite moves from west to east
-with a time period of 24 hours

Question 9

Centripetal force

Answer 9

Mv^2/r