P5:Tidal and Non-Gravitational Forces Flashcards
1
Q
tidal effects drop off rapidly with ___
A
distance
2
Q
a small body passing too close to a large once can be torn apart by the larger body’s ___
A
tidal force
3
Q
the Roche limit is the minimum ___ before tidal disruption
A
separation
4
Q
ring origin models:
-fragments of bodies that entered within the ___
-debris from the formation of the ___
-debris from a collision between ___
A
Roche limit/planet/moons
5
Q
___ pushes bodies away from the sun
A
radiation pressure
6
Q
ratio of attractive and repulsive forces is ___ of r
A
independent
7
Q
Poynting-Robertson effect: loss of ___ so particles spiral inwards
A
angular momentum
8
Q
prograde spin leads to ___ orbits
A
expanded
9
Q
Yarkowsky effect ___ the orbits of bodies with ___ spins
A
shrinks/retrograde
