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Density in physics is the measure of how much mass is contained in a given volume of a substance
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What is density in physics? Definition:
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Density in physics is the measure of how
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much mass is contained in a given volume
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of a substance. Explanation: Density
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tells us how compact or closely packed
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the particles of a substance are. A
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substance with high density has a large
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mass and a small volume, while a
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substance with low density has less mass
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in the same volume. Density helps
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explain why some objects float and
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others sink when placed in a fluid. It
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also helps identify materials and
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compare substances. Imagine. Imagine
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holding a block of iron and a block of
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wood of the same size. The iron feels
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heavier because it has a higher density
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than the wood. In simple terms, density
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tells us how heavy something is for its
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size. Formula or concept? Density is
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calculated by dividing mass by volume.
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The SI unit of density is kilogram per
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cubic meter. Density equals mass/ volume
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where mass equals mass of the substance.
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Volume equals space occupied by the
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substance. Key points measures mass per
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unit. Volume indicates how compact
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matter is. Helps explain floating and
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sinking. SI unit is kilogram per cubic
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meter. depends on material not shape.
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Examples: iron is denser than wood. Ice
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is less dense than water. Oil floating
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on water. Different gases having
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different densities. Applications.
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Engineering and material selection.
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Floating and sinking analysis. Medical
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and laboratory work. Identification of
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substances. Physics education. Question.
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Why does ice float on water? Answer. Ice
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floats on water because its density is
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lower than that of liquid water. Solved
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problem question and answer. Question. A
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block has a mass of 4 kilogram and a
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volume of 0.0 to cub m. What is its
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density? Answer mass equals 4 kilogram.
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Volume equals 0.0 to m. Density equals
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mass/ volume. Density equals 4 0.02.
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Density equals 2,000 kilogram per cubic
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meter.