#2
passive pickups - don't need batteries, "plug and play"

active pickups - needs batteries, either 2 AAs or 1 9V battery.. usually comes with a pre-amp (sort of equalizer where you can tweak the high, middle, and low)

high end.. maybe those are a bit costly-type pickups..can be passive or active.. if what you meant was 'high output' pickups, then those are pickups that would have a louder sound..

i prefer active pickups although i have to change batteries once in a while because imo, it gives out a clearer output of the tone compared to passives.. also +1 to the pre-amp that comes with it..

hope this helps man..
Gear:

PRS SE Standard
Ibanez AEG8E-NT w/ Seymour Duncan Woody SC
Yupangco Classical Guitar
Korg AX5G
Marshall MG50DFX
Vox Pathfinder 15R
#3
most pickups come with volume and tone control.. even cheap ones.. so judging from that pickup, it being a fishman, i would say it has volume and tone controls..
Gear:

PRS SE Standard
Ibanez AEG8E-NT w/ Seymour Duncan Woody SC
Yupangco Classical Guitar
Korg AX5G
Marshall MG50DFX
Vox Pathfinder 15R
#5
sure.. no prob man..
Gear:

PRS SE Standard
Ibanez AEG8E-NT w/ Seymour Duncan Woody SC
Yupangco Classical Guitar
Korg AX5G
Marshall MG50DFX
Vox Pathfinder 15R