How is velocity classified in terms of measurement levels?

Velocity is classified as a ratio measurement level because it possesses all the properties of interval measurement, along with a true zero point. In the case of velocity, the zero point signifies the absence of speed or movement. This means that a velocity of zero indicates that an object is not moving at all, which allows for meaningful comparisons and calculations between values.

Moreover, with ratio scales, both differences and ratios between measurements can be calculated. For instance, one might say that an object moving at 60 km/h is moving twice as fast as one moving at 30 km/h, and this relationship holds true due to the presence of the true zero point. This characteristic of ratio measurement makes it distinct from nominal, ordinal, and interval levels, which do not have this essential feature of a meaningful zero point and the ability to express ratios effectively.