Ah, well yes, wide angle lenses show... well, a wide angle. The wider the angle, the more stuff is crammed into the scene, and thus the smaller it all has to be.
In terms of how wide of an angle is wider than human vision? That's a much more complicated question. Saying the eye has a 50mm focal length is, well, wrong, and it's overly simplistic to assign a single value at all anyway (Although 50mm is often said to be a "normal" focal length for reasons I have never understood).
Factors to consider:
1) The human eye has a variable strength lens. As muscles pull on the lens it changes its refractive strength. This is not really very equivalent to anything in a camera lens, per se.
2) The actual physical distance from your lens to your retina is not constant, because your retina curves, making it fundamentally unlike a camera in many basic ways.
3) If you insist on taking a distance measurement, the straight line distance from the lens to the back of the retina is about 1 inch, 24-25mm. Although again, since the lens can change shape, this shouldn't be taken as very meaningful. My Canon camera has a distance from the lens to the sensor of 45mm. That doesn't mean all my lenses have a 45mm focal length. The meaning of distance from a lens changes with both refractive strength and the distance of the object you desire to focus on.
4) The angle of view covered by a single eyeball is about 150 degrees, which would be the equivalent of a full frame camera lens of something like 10-12mm. The angle covered by your binocular vision is significantly larger than this, closer to 180 degrees, which would require a 0mm rectilinear lens, and can thus only be matched with a single camera lens using distorting fisheyes, or a pinhole punched into infinitely thin material.
5) The eye does not have a uniform distribution of photoreceptors (Most of your vision happens at the fovea), nor does it have a particularly rectilinear projection.
6) You can't actually see an entire scene in focus and detail both at once like your camera sensor can, so you are constantly darting your eyes aroudn to take in a scene, This has a huge effect on your practical, real life effective angle of view and "focal length" equivalent, since you are covering a larger area in reality than the eyeball structure would imply. You may eve turn your head to take in a scene, providing potentially up to 360 degrees of visual angle, etc.
7) The eye has a much "smaller sensor" than a full frame camera does. Your retina is about 20%-ish the size of a full frame DSLR sensor, which changes all the millimeter equivalents and blah blah.
8) Your brain does all kinds of crazy **** to the image after it hits your retina. Much MUCH more than your camera does to images after it hits your sensor. Half of what you see is more or less not there at all, and 100% of it is filtered/doctored at least a fair amount.
9) You have to take into account the distance you're going to be viewing the print from if you're talking about a print or an image on a computer. If an image has the same angle as your eye, for instance (let's say 10mm, and assume you are blind in one eye and the other is paralyzed and can't move, to make it comparable to a camera), yet you make an 8x10 print of it and look at it from 2 feet away, then it's going to look oddly wide, because you're used to only seeing about an 85-90mm lens' visual angle in that SUB PORTION of your vision. If you look at it from half an inch away, it won't seem odd anymore in terms of perspective. So what will look like a "normal focal length photo" actually depends on the size of the print, the viewing distance, AND the focal length.
or if you're looking into a viewfinder, you have to take into account the portion of your normal visual field that the image in the viewfinder takes up. It is NOT 100%!!! When you look into a viewfinder, you see an image plus a whole bunch of black nothingness around it. The blackness is space that you would normally be seeing stuff in.
Thus, to figure out what the "normal" focal length is, you need to figure out what angle of view your eye would normally see within that portion of its angle of view. One easy way to do this is to hold your camera in portrait mode, look through the viewfinder with one eye, look at the object with your other eye straight up, and zoom until the two images match in size.
When I do this, I usually get about 70mm on my lens before the two images are exactly equal, on a full frame DSLR. Usually.
However, that number will change based on the size and shape of the viewfinder, it might change if I'm tired or drunk, and it doesn't represent the way you normally look at a scene (darting your eyes around), and it doesn't take into account the area that your OTHER eye would normally add to your vision (you can only look through a viewfinder with one eye, but you look for things to photograph with TWO eyes), etc. etc.