definition of gravity physics
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gravity (or gravitation) Gravity, also called gravitation, is a force that exists among all material objects in the universe. For any two objects or particles having nonzero mass, the force of gravity tends to attract them toward each other. Gravity operates on objects of all sizes, from subatomic particles to clusters of galaxies.
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What is gravity? Gravity is a property of mass and space that causes an equal pair of forces that attract every pair of masses toward each other. Gravity force is the force that is exerted by the gravitational field of a massive object on a body that is within the vicinity of its surface.
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Gravitational acceleration Main article: Classical mechanics. In physics, gravitational acceleration is the acceleration on an object caused by the force of gravitation. Neglecting friction such as air resistance, all small bodies accelerate in a gravitational field at the same rate relative to the center of mass.
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Gravity Gravity, also called gravitation, in mechanics, the universal force of attraction acting between all matter. It is by far the weakest known force in nature and thus plays no role in determining the internal properties of everyday matter.
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- Physics (from Ancient Greek: φυσική (ἐπιστήμη), translit. physikḗ (epistḗmē), lit. 'knowledge of nature', from φύσις phýsis nature) is the natural science that studies matter and its motion and behavior through space and time and that studies the related entities of energy and force.
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physics physics. n (functioning as singular). 1. (General Physics) the branch of science concerned with the properties of matter and energy and the relationships between them.
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The Acceleration of Gravity It is known as the acceleration of gravity - the acceleration for any object moving under the sole influence of gravity. A matter of fact, this quantity known as the acceleration of gravity is such an important quantity that physicists have a special symbol to denote it - the symbol g.
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Gravity wave In fluid dynamics, gravity waves are waves generated in a fluid medium or at the interface between two media when the force of gravity or buoyancy tries to restore equilibrium.An example of such an interface is that between the atmosphere and the ocean, which gives rise to wind waves.ind-generated gravity waves on the free surface of the Earth's ponds, lakes, seas and oceans have a period of between 0.3 and 30 seconds (3 Hz to 0.03 Hz).
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- Specific Gravity. Specific gravity is defined in Webster's dictionary as the ratio of the weight or mass of a given volume of a substance to that of another substance (usually water for solids and liquids) used as a standard. Specific gravity is not expressed in units as it is purely a ratio. Density Table.
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gravity Definition of gravity for English Language Learners. : 1  a very serious quality or condition : the condition of being grave or serious. : 2  the natural force that tends to cause physical things to move towards each other : the force that causes things to fall towards the Earth.
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Newton's Laws and Weight, Mass & Gravity Gravity is a force. A force is simply a push or a pull experienced by objects that interact with each other. The interaction can be direct or at a distance, which is the case of gravity. Newton's laws tell us that if an unbalanced force acts on an object, it will change the object's state of motion. In other words, the object will accelerate. Since gravity is a force, gravity causes objects to accelerate.
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mass In physics, mass is a property of a physical body which determines the strength of its mutual gravitational attraction to other bodies, its resistance to being accelerated by a force, and in the theory of relativity gives the mass–energy content of a system. The SI unit of mass is the kilogram (kg).
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Gravity Gravity is one of four known fundamental forces of nature (Table 1). Note that gravity is by far the weakest of the four, yet it dominates on the scale of large space objects.
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gravity The attraction toward the earth that makes any mass exert downward force or have weight. Strictly speaking, gravity is the algebraic sum of the gravitational attraction of the earth and the opposing centrifugal effect of the mass's rotation around the earth.
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- Gravity is one of the fundamental forces of the universe, one that causes every object in the universe to attract every other object. In fact, anything that has a mass, anything that contains physical matter, will be attracted to every other object with mass.
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- Physics (from Ancient Greek: φυσική (ἐπιστήμη) phusikḗ (epistḗmē) knowledge of nature, from φύσις phúsis nature) is the natural science that involves the study of matter and its motion and behavior through space and time, along with related concepts such as energy and force.
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gravity gravity. 1  the force of attraction by which terrestrial bodies tend to fall toward the center of the earth. 2  heaviness or weight. 3  gravitation in general. 4  acceleration of gravity. 5  a unit of acceleration equal to the acceleration of gravity. 6  serious or critical nature: He seemed to ignore the gravity of his illness.
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Gravity Gravity is the weakest of the four fundamental forces, yet it is the dominant force in the universe for shaping the large scale structure of galaxies, stars, etc. This is often called the universal law of gravitation and G the universal gravitation constant. It is an example of an inverse square law force.
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specific gravity specific gravity definition The mass of a substance, given as a multiple of the mass of the same volume of a standard substance (usually water). The specific gravity of aluminum is 2.70; hence, a cubic foot of aluminum weighs 2.70 times as much as a cubic foot of water.
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Glossary of physics 1 Physics is a natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force.  Matter is generally considered to be anything that has mass and volume.
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- Specific gravity is defined in Webster's dictionary as the ratio of the weight or mass of a given volume of a substance to that of another substance (usually water for solids and liquids) used as a standard. Specific gravity is not expressed in units as it is purely a ratio.
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Difference Between Gravity and Gravitation What it Means. Gravitation refers to the attractive force between two masses in general. Gravity refers to the resultant force between a mass and Earth. The resultant force also accounts for other forces present in the system, for instance, the force on the mass due to the Earth’s rotation.
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How Physics Works Physics is the scientific study of matter and energy and how they interact with each other. This energy can take the form of motion, light, electricity, radiation, gravity — just about anything, honestly.
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Facts About Emu Eggs â Size, Weight and Strength In the video below it demonstrates the many facts about Emu Eggs, including size, weight and strength. (Emu Egg Facts Video Above . As you can see from the video as well, these Eggs are great once cleaned and drained for Art.) 1  Australian Emu Eggs Hatching in the Forest Emu’s eggs are truly an amazing egg, they are large almost up to 25 cm in width and are usually...  Emu Oil Facts Emu oil is truly great for so many ailments and benefits..
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Newton's Law of Gravity Newton's law of gravity defines the attractive force between all objects that possess mass. Understanding the law of gravity, one of the fundamental forces of physics, offers profound insights into the way our universe functions. The Proverbial Apple
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Gravity of Earth The gravity of Earth, which is denoted by g, refers to the acceleration that the Earth imparts to objects on or near its surface due to gravity. In SI units this acceleration is measured in metres per second squared (in symbols, m / s 2 or m·s −2) or equivalently in newtons per kilogram (N/kg or N·kg −1).