yes, but I haven't had a lot of luck with them.
http://en.wikipedia.org/wiki/List_of_video_editing_software#Free_.2F_Open_Source_Software
There are many programs one can use for video editing. Examples for video editing software are Windows Movie Maker, Kate's Video Toolkit, Avidemux, VSDC Free Video Editor and MPEG Streamclip.
I don't know how good they are, but the most popular ones are: Cinelerra Kdenlive Kino LiVES
Yes. For such kind of operations you will need a video editing program. In most operating systems today, there are pre installed video editing programs. For example in Windows there is Windows Movie Maker.
Some recommended Linux video capture software options for recording and editing videos include OBS Studio, Kdenlive, Shotcut, and OpenShot.
Video editing software is freely available on the internet and various programs such as Adobe and Windows Movie Maker are free to download or may already be installed on some computers.
Google: Video Spin or Video Pad. They are free video editing programs you can download.
Try Video Spin or Video Pad. Both programs are free and similar to Windows Movie Maker.
There are many video editing programs available depending on skill of the user. some programs are free but some require payment. imovie is a good program to use. However if you prefer more of an advance program Sony Movie Studio is fantastic
Sony Vegas, just like other video editing software applications can't offer their programs for free. If you want a free program for video editing there are many on the Internet to choose from. Premiere programs such as Sony Vegas, Adobe AfterEffects and Movie Magix are extensive programs with many features and functions not available with free programs.
camcorder and some computer editing programs (photoshop, AVS video editing)
Digital Video Editing
Windows Live Movie Maker is only for video editing. You have to record your own video with a webcam or a video camera. Once you record your video, you import it into the editing software.