Toolkit - Timing in Animation

In Nat's lesson last week we worked on timing. I wasn't in this lesson, but I managed to gather enough information to understand what I needed to do! In the GIF below are the examples I've made that I'm pretty sure was covered in Nat's class.

The top ball is travelling at a constant speed from one side of the screen to the other, whereas the one below it eases in, speeds up, and then slows down to ease back out again. To ease it in, you need to include more frames at the beginning, then do less to make it speed up. The class then applied this logic to a pendulum swinging back and forth.

In this pendulum example, you can see that the ball is swinging at a constant speed, and it doesn't really look that natural at all. However, if you apply the 'ease in, ease out' principle to it, and add in an arc to give it a more natural swing, the whole animation suddenly looks a lot smoother:

It was interesting to apply this logic to different scenarios, and I can think of lots of different ways in how it can be helpful in animation, such as a car speeding up and slowing down, a ball, or other objects. Hopefully I've accurately covered all I missed in that lesson, this is as much as I could gather from talking to Nat, my classmates and also looking at their blogs!