Ch.1 - Introduction: Matter, Energy, and Measurement

Problem 85a

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Chapter 1, Problem 85a

Two spheres of equal volume are placed on the scales as shown. a. Which one is more dense?

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Density

Density is defined as mass per unit volume, typically expressed in grams per cubic centimeter (g/cm³). It is a physical property that indicates how much matter is packed into a given space. In this scenario, comparing the density of the two spheres involves determining which one has a greater mass while maintaining the same volume.

Mass

Mass is a measure of the amount of matter in an object, usually measured in grams or kilograms. It is an intrinsic property that does not change regardless of the object's location. In the context of the question, the mass of each sphere is crucial for determining their respective densities, as density is calculated by dividing mass by volume.

Volume

Volume is the amount of space an object occupies, typically measured in cubic centimeters (cm³) or liters. For the two spheres mentioned, since they are stated to have equal volume, this factor remains constant when comparing their densities. Understanding volume is essential for calculating density, as it serves as the denominator in the density formula.

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