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Young’s modulus
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Metal bar under tension increases in length and decreases in cross section
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Metal bar under tension increases in length and decreases in cross section
Metal bar under tension increases in length and decreases in cross section

Young’s modulus

physics
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Also known as: Young modulus, stretching modulus, tensile modulus
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elastic modulus
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Young’s modulus, numerical constant, named for the 18th-century English physician and physicist Thomas Young, that describes the elastic properties of a solid undergoing tension or compression in only one direction, as in the case of a metal rod that after being stretched or compressed lengthwise returns to its original length. Young’s modulus is a measure of the ability of a material to withstand changes in length when under lengthwise tension or compression. Sometimes referred to as the modulus of elasticity, Young’s modulus is equal to the longitudinal stress divided by the strain. Stress and strain may be described as follows ...(100 of 415 words)

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