space - orbital motion Flashcards
1
Q
what’s a circular orbit
A
an orbit in a circular path
2
Q
what’s an elliptical orbit
A
an orbit where planets orbit the sun in an oval like shape
3
Q
what holds the earth in its orbit
A
the force of gravity acting between the sun and the earth
4
Q
artificial satellites are…
A
manmade
5
Q
how often do geostationary satellites orbit
A
once every 24 hours meaning they point to the same part of earth
6
Q
what does the force of gravity do to speed and velocity
A
changed velocity, but not speed
7
Q
if the speed of the satellite changes…
A
the radius of the orbit must also change
8
Q
by moving closer to earth, what happens to the gravitational force on the satelite
A
it is greater snd the satellite remains in a stable Orit
