5.2 Gravitaional Fields Flashcards
1
Q
GFS definition
A
“Force per unit mass”
2
Q
Newtons law of universal gravitation
A
“Between any 2 point masses there exists an attractive force which is directly proportional to the product of the masses and inversely proportional to the square of their separation”
3
Q
Keplers third law
A
“The square of their period of revolution T, is directly proportional to the cube of their mean distances, r, from it”
T^2&r^3
4
Q
Value of G
A
6.67x10^-11
5
Q
Value of k
A
2.9466x10^-19
6
Q
Force equation
A
F=G.(M.m/r^2)
7
Q
gravity equation
A
g=G.(M/r^2)
8
Q
Time period of satellite
A
T=2pi.§r^3/G.Me
9
Q
Mass of sun equation
A
Ms=4pi^2.r^3/G.T^2
10
Q
Centripetal force and GFS equation
A
mrw^2=GMem/r^2
