Re: Dont understand whats happening here
When you're running in any sort of virtual machine (Qemu, Virtualbox etc) the virtualiser won't let the guest OS have unfettered access to hardware devices, because then the guest can seriously stuff up the host.
As a result, the network connection that Windows has, is presented to the virtual Ubuntu as a wired connection. As far as Ubuntu or any guest operating system is concerned, you do not have a wireless card.
If it's a wireless USB device, then you should download Virtualbox (the closed-source edition) and install Ubuntu within that, and then set up a USB passthrough. It will present the USB device to the guest as a USB device; of course this will stop it working in Windows, until you quit the VM.
Alternatively, I believe Aircrack has a Windows version, assuming this was the software you were going to test.
If your wireless device is built-in, then you're out of luck - you will need to install Ubuntu as a dual-boot.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.