Gravitational fields Flashcards
1
Q
What is a gravitational field?
A
A region of space in which a mass fields a force
2
Q
What is different about gravitational fields depending on scales?
A
On a large space the field is radial, on a localised scale the field is uniform
3
Q
What is Newtons law of gravitation?
A
F = -Gmm/r^2
4
Q
What is gravity force?
A
Attractive
5
Q
What is field strength?
A
Force per unit mass
6
Q
What does geosynchronous mean?
A
This means it has an orbit time of 24 hours
7
Q
What is gravitational potential?
A
The work done in moving a point mass from that point to infinity
