Whats the difference between k and C-p?

Question

Is there any difference between the behaviour of C-p and k? The seam to be doing the same thing; moving up a line

Answer 1

By default in normal mode they do the same thing. But, say, in Insert mode they don't.

This is pretty normal situation when different keys are bound to the same action. If in doubt, read the help system: :h ctrl-p