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The difference between mass and weight
Gravity is the weight of an object, but it does not change with the weight of the earth
What's the difference between weight and mass?
Weight refers to the weight of an object
Mass is the property of an object
For example, if a stone weighs 4kg, its weight is (4 * 9.8) 39.2n, and its mass is still 4kg. When it is brought into space, its weight will be zero, but its mass remains unchanged, or 4kg
What is the difference between weight and mass
Why is the unit of mass and weight in kilogram?
Should mass be lost in space weightlessness?
Mass in Physics: the amount of matter contained in an object is called mass. Mass does not change with the shape, state and spatial position of the object. It is the basic property of matter, usually expressed in M. in the international system of units, the unit of mass is kg, that is, kg
It has to be mentioned that in physics, mass is divided into inertial mass and gravitational mass. Inertial mass refers to the size of inertia of an object, while gravitational mass refers to the size of gravity. In fact, numerous accurate experiments show that the two masses are equal, that is to say, they are only different aspects of the same physical quantity
Kilogram is a unit of mass, not a unit of weight. What we call weight in daily life is also called mass
Weight is a measure of the force exerted on an object by universal gravitation. Weight is different from mass. The unit is kilogram
Under the gravity of the earth, weight and mass are equivalent, but the units of measurement are different. When a material with a mass of 1kg is subjected to an external force of 1n, the weight is called 1kg. Generally, the unit of mass is used instead of weight, which is implied by multiplying by the acceleration of gravity. In ancient China, Jin and Liang were used as weight units. Pounds, ounces, carats and so on were also used as weight units
For example, we often say the amount of iron refers to the quality
The quality won't change
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