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Lesson 21

Measurement of Density - Regular Solid

Measurement of Density - Regular Solid

MINESEC DISTANCE LEARNING

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A student measures the initial volume of water in a container as 40 ml. After submerging an irregular stone, the final volume reads 68 ml. What is the volume of the stone?

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This part of the lesson focuses on correcting an assignment from the previous lesson related to measuring the volume of irregular solids. [01:10] The main takeaway is that the volume of an irregular solid is equal to the volume of liquid it displaces. The assignment provides multiple-choice answers. The initial volume must be subtracted from the final volume after submerging the irregular solid. [01:47] The formula for finding volume is V = V2-V1 = 90 milliliters - 65 millileters = 25 milliliters. [02:50] The lecture also shows the formula, the units, and provides an example.