Do you have any course book about it? If not, I'd recommend you try to find a good introductory book to Linguistics (or English linguistics) they will have one chapter about morphology and it should help you a lot.
To make it short, a free morpheme is one that you can find alone eg. friend
a bound morpheme is one that adds meaning to another morpheme, eg. -s to add plural: friends
or -ly to change the grammatical category: friendly
of course there's more to it but I'm sure you can find material, do not hesitate to ask me if you have questions I would try to help.
And yes, your question makes sense, there's no mistakes