Some questions about tackle and how to use it

[sonicsink]

Ok so after tonnes of reading, I just wanted to ask some questions...

I know one spot where there are bass because I see a lot of imitation frog lures hung up on the powerlines above it So, how do you fish fake frog lures like a Hula Popper? Do you just cast it out to the weedy areas and pull on the rod to make the lure "hop" around as you reel it in slowly?

Jigs... I have seen some with curly grub lures, "feathers", etc...Do you just cast these out until it hits the bottom and then just tug at it and let it drop back down again as you slowly reel it in (sort of the same idea as the frog lure above but then under the water)?

Other lures that look like fake fish or minnows... I know that the way the scoop is at the front makes the lure do different things like dive down and stuff, but do you just basically cast these lures out on their own (with no weights on them) and then you steadily reel them back in?

Spinners...Is all the fish is attracted to is the flashiness and rattle of it? It will just grab it with out any kind of fake or real bait on it? Do you need any weights on the spinner line or does it basically stay down mid level on it's own when you pull it through the water on retrieve?

Leader lines...Is this those little lengths of wire line with the clips on them? If so, this one confused me a bit, so I wanted to know if I have it right now...I was always curious as to why people were talking about leader lines having like a __ lb weight limit when they were attaching it to fishing line that had a much smaller weight limit, but is the weight limit on leader line just lbs of pressure from fish with big choppers, so that when they clamp down on the bait/lure, that their teeth jaws don't snap the line?

Thanks for answering my questions!