Gravitational and electric fields

Question 1

what is gravitational field

Answer 1

any object will experience an attractive force if you put it in a region of a gravitational field
a gravitational field is a force field

a force field is a region in which a body experiences a non-contact force

Question 2

radial

Answer 2

when lines of force meet at the centre

Question 3

newtons law of gravitation

Answer 3

F = Gm1m2 / rr

Question 4

gravitational constant

Answer 4

6.67 x 10^-11

Question 5

inverse square law

Answer 5

law of gravitation is an inverse square law as F directly proportional to 1/rr
this is becuase its radial

Question 6

gravitational field strength equation

Answer 6

g = F/m

Question 7

gravitational field stength

Answer 7

force per unit mass
value depends on where you are in the field
g is a vector quantity, always pointing towards the centre

Question 8

Radial fields

Answer 8

GM / rr

Question 9

area under y=g, x = r graph

Answer 9

gravitational potencial