Kilogram, also known as "kilogram", is the basic unit of mass measurement in the metric system and is also used as a unit of weight. One kilogram is equal to two kilograms, or one kilogram, one thousandth of a metric ton.
Kilogram is equivalent to kilogram, 1 kg is equal to 1kg, and 1kg is equal to 2 kg. They are all units of weight. Generally speaking, primary schools are exposed to kg, which is one of the most commonly used basic units in daily life and the basic unit for measuring quality in the international system of units.
The nature of kilograms
Kilogram is the unit of mass, and mass 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).
The weight of matter depends entirely on the local gravitational intensity, while the mass is constant (assuming that the mass does not move relative to the observer at relativistic speed). Accordingly, astronauts in microgravity can lift objects in the space capsule effortlessly; Because objects are weightless. However, an object still maintains its mass in microgravity, and astronauts need to exert ten times the force to accelerate an object with ten times the mass at the same acceleration.