Eh, it’s not really similar though. Yes, a lot of what we think of as “taste” is actually perceived via smell. But separately from that, there is actually a phsyiological sensation of taste that is unrelated to smell, i.e. the five basic tastes: sweet, sour, salty, bitter, and savoury.
Whereas there isn’t really any meaningful distinction between the sense of acceleration and balance. They’re exactly the same sensation, and the mind only knows which one you’re actually experiencing by cross-referencing what your other senses tell you. If you’re in a situation where these other senses are unavailable, people generally can’t distinguish whether they’re accelerating or off balance.
This has led to a number of plane crashes in history, in situations where pilots are in dense cloud cover and can’t see the horizon. During stressful situations, if they forget to look at the artificial horizon display, they think the plane is pitching up, and therefore try to pitch down to correct, when in fact the plane is accelerating (due to already being pitched down), resulting in a crash.
The numbers are irrelevant. It’s just an arbitary scale.
If you were experiencing a pain that’s so mild it’s basically just a feeling of discomfort, you’d be able to describe that, right? And you it you were experiencing a pain so intense that it has you literally screaming? You’d be able to describe the difference between them, right? Well there’s literally a conversion chart that translates those feelings into numbers.
You don’t have to conceptualise anything — it’s literally printed on a paper for you when they ask you the question. As long as you can experience pain and either read a description of pain severity, or describe your pain severity to someone who can read, you can use a numerical pain scale.