Ordinary cars, cranes and large trains. One ton is equivalent to 1000 Jin, 2000 Jin. This is replaced according to the mathematical equivalence relation, and one ton is equal to 1000kg. 1kg equals one kilogram, so one ton equals 1000 kg. At the same time, one kilogram equals two kilograms, so 1000 kilograms equals 2000 kilograms.

It is easy for us to encounter this kind of equivalent substitution in our daily life, because equivalent substitution means that we have to make relevant calculations. Some people use different mathematical constants, so equivalent substitution becomes very important. Some people usually use kilograms, while others usually use kilograms, so we need to pay special attention to this kind of equivalent replacement in daily life when learning mathematics knowledge.

weight

Weight is a measure of the force of an object under the action of gravity. Weight and quality are different. The unit is kilogram weight. Under the gravity of the earth, weight and mass are equivalent, but the units of measurement are different.

A substance with a mass of 1 kg is called 1 kg when it is subjected to an external force of1Newton. As a physical concept, what is the exact meaning of weight? Different opinions exist in teaching materials, which leads to confusion in the usage of "polysemy". Under the gravity of the earth, a substance with a mass of 1 kg produces a weight of 9.8 Newton.