And weight is mass times g, which is m * g.
In fact, in our life, there is no difference between weight and quality. We think it is the same. In fact, there is a G relationship between the two, that is, the weight is equal to the mass multiplied by the constant G.
To be exact, weight is a measure of physical gravity, which is the mass multiplied by this g, and g=9.8, which is often specified as 10 when calculating.