On a motorbike or a car, you control the gas feed rate by turning the right handle (motorbike) or pushing down the gas pedal (car). When the gas feed increases, the "vroom" (noise and vibration) also increases. I'm looking for (technical) words to describe such measures:
- The amount of "vroom" (noise and vibration)
- The level of the gas feed
- The measurement of $ vroom / gas feed $