What is the name of this cable that goes into a modem?

I have bought cable internet from teksavvy and the modem arrived however the cable that comes out of the wall and goes into the modem where it's labelled "Cable", is very short.

What's the name of this cable? But most importantly can I buy one that can extend this cable so I can bring the modem closer to my PC?

If so, please advise where and which cable I should be looking for? Would canadian tire carry this item for instance?

I would guess that it is most likely an F Connector: http://en.wikipedia.org/wiki/F_connector

Yes Canadian Tire would most likely carry an F Connector. If not you can easily purchase these connectors (or already crimped cables) online (just search google for it).

You have cable internet and this is either 75 Ohm rg-59 or rg-6 quad shield coaxial with a compression F-connector.