Jerkiness refers to the movement of something that doesn't move smoothly. Imagine you're riding in a car and it suddenly stops and starts a lot, making you feel like you're bouncing around. That's what we call a jerky ride. Another example is when you try to draw a straight line with a pen, but it comes out shaky and bumpy. That's a jerky line. It's not smooth and nice like we want it to be.
Sometimes, things can be jerky because they're not moving the way they're supposed to. Maybe something is broken or not working properly. Sometimes, it's because something is trying to move too quickly or too unevenly. This can happen when a machine is trying to do something very precise, but it's not able to do it perfectly.
Jerkiness can be frustrating because it makes things feel unpredictable and out of control. But luckily, there are ways to fix it! By making sure machines are well-maintained and using careful movements, we can make things move smoothly and without any jerks.