1, gold and silver, two precious metals that are very popular in life, have been used as currency, value preservation and jewelry for centuries. In nature, gold exists in the form of simple substance in gold nuggets or rocks, underground veins and alluvium. In today's life, people also regard it as an ornament. When buying it, it is measured by grams. Vegetables, fruits and rice are necessities in people's daily life. Buying in shopping malls, supermarkets and stalls is measured in kilograms. 3. Cement, sand and steel bars are the main materials for building houses and are very common items in life. They are used in large quantities in actual use, so they are measured in tons.
The conversion between tons and kilograms and grams is: 1 ton = 1 000kg,1kg =1000g. The kilogram is a metric unit of measurement, and one kilogram is equal to one kilogram, which is equivalent to two kilograms in China. Kilogram is the unit of mass, and mass is equivalent to how "heavy" a thing is every day. However, quality is actually an attribute with "inertia"; In other words, an object will tend to maintain its current speed without external force. When an object with a mass of one kilogram is subjected to a force of one Newton, it will get an acceleration of one meter per square second (about one tenth of the acceleration of the earth's gravity).