1.3 Mass--A Measure of Inertia

Mass/Weight

Paul distinguishes between mass and weight in a video from his classroom, then breaks strings attached to a ball in ways that clarify the distinction.

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Distinguishing Mass, Weight, and Volume

Three very fundamental physical quantities are discussed: mass, weight, and volume. Mass and weight are not the same thing: while mass is the amount of matter, weight is a gravitational force. Volume is the region of space that an object may occupy. Duration: 10:17.

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