What type of animation is this?

So I saw this video which is a wonderful video on physics:

I really love the video content but was unsure about the name of the type of animation she used. Also, I was unsure about how I could go about doing this type of animation or similar.

A few days ago, it struck me that technically speaking, she could have drawn a frame and then redrawn it multiple times and played them.

Unfortunately, this is a huge amount of work to do so I was also wondering whether there was a faster way to achieve this type of animation (assuming I already have all the frames for a regular animation without the moving lines). I am not exactly a genius in the art and animation field but was very curious.

I guess it would be possible to do a small scale animation like a title where I could write a title or something and then redraw it five or six times as close as possible and make it a GIF image but again, on a larger scale there would be a huge amount of work that would needed to be done.

Picture of What type of animation is this?
2D stop frame animation
Chances are it was done with some PC software like Anime studio. Which will allow you to do anything from pencil sketch, to paper cuts (AKA South Park style animation), to full blown anime. But you will want to use a good quality tablet so you can get the sketches into the PC. As in a Wacom Tablet not a Android or iPad.

Whether you use the anime software or hand draw things there will be a huge amount of work just making a short minute long clip. The Software is certainly quick then hand drawing every frame but still involves a lot of hand drawing then configuring the aspects of the screen that will be animated and how it will move. Not to mention time and effort to get to know the working of the software before you even get started.