Kiti masės vienetai Trumpa apžvalga Mass is a measure of the resistance of the object to acceleration. It is an inherent property of the object, contrast to weight, which depends on the gravitational field of the planet, dg svorio the object is located.
In physics weight refers to the force that acts on an object, and is calculated as a product of mass and g, the gravitational acceleration that differs depending on the astronomical object, which creates dg svorio gravitational field that the object is affected by.
Thus, an object with a mass of one kilogram has a weight of approximately 9. Mėnulio masė lygi 7,×10²² kg Gravitacinė masė Gravitational mass dg svorio to the measure of the gravitational force experienced by the object passive or deployed by it active. When active gravitational mass increases, the gravitational field of the object becomes stronger.
Gravitational field is what keeps the astronomical objects in place and determines the structure and the layout of the Universe. Tides are also caused by the interaction between the gravitational forces of the Moon and the Earth. Passive gravitational mass numesti svorio ig the effect of the gravitational field of another body on an object.
Increase in weight of the object results in the increase of its passive gravitational mass. It represents the degree dg svorio resistance of the object to being accelerated. Gravitational dg svorio and inertial mass are equivalent. Masė ir reliatyvumas According to the theory of relativity, the gravitational mass changes the curvature of the space-time continuum.
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The more mass such body has, the greater is the curvature around the body, so close to the bodies of large mass such as stars, the light rays bend. In astronomy, this effect is called gravitational lens. On the contrary, far from large astronomical objects massive stars or clusters called galaxies the light rays move in a straight line. The basic postulate of the theory of relativity states that the speed of light in a vacuum is finite and it is the same for all observers, regardless of dg svorio light source motion.
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Several interesting consequences can be drawn from this principle. First, it is possible to imagine the existence of objects with such a large mass that the escape velocity for objects to escape the gravitational attraction of such an object will be equal to the speed of light.
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Consequently, no information from this object will get to the outside world. Second, when an object is travelling dg svorio close to the speed of light, its inertial mass increases such that the local time inside this object is slowing down compared to the time measured by the stationary clock located on Earth. This paradox is known as the twin paradox. It involves identical twins, one of whom makes a journey into space in a high-speed rocket moving at a speed close to the speed of light and the other remains on Earth.
When the astronaut twin dg svorio home, he finds that his twin who remained on Earth is biologically older than he is!
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Vienetai Kilogramas The SI unit of mass is a kilogram, which is defined by taking the fixed numerical value of the Planck constant h to be 6. According to mass-energy equivalence, electronvolt is also used as a unit of mass within the natural units system where C is equal to 1.
This unit is often used in particle physics.
Atominės masės vienetas Atomic mass units u are used to measure mass of molecules and atoms. It is about 1.
Slug The slug is a unit of mass used in the imperial system, dg svorio in the UK. It is about Saulės masė lygi 1,× kg Saulės masė The solar mass is used in astronomy to measure masses of astronomical objects such as stars, planets, and galaxies.
The Earth is abouttimes smaller than that.
Karatas In jewelry, mass of gemstones dg svorio metals is measured in carats, where one carat is milligrams. It originally referred to the dg svorio of a carob seed and customers would often carry their own seeds to use when dealing with merchants of precious metals, dg svorio ensure accuracy of the transaction.
The weight of a gold coin in dg svorio Rome was defined as 24 carob seeds, and as a result carats also became an indication of purity of gold, with 24 carats being gold-only, 12 carats being an alloy of half-gold, and so on. Weight information in soft metric system on food products in Canada Granas Grain is a unit of mass used across the world from the Bronze Age into the Renaissance.
It is equivalent to the weight of a grain of commonly grown cereals at the time, such as barley, or about It is a little more than a quarter of a carat. It was previously used in jewelry to measure gemstones before the carat was adopted.
Currently it is used in weaponry for measuring mass of gunpowder, bullets, and arrows. It is also used in dg svorio to measure the mass of gold foil.
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Ounces are often used in cooking, especially with ingredients in small quantities. In Canada many products are sold in imperial sizes and at the same time labelled in metric units as shown in this picture. Unlike these soft metric packages, in a hard metric system soda crackers might come in a g package and green peas in a dg svorio can.