2.3 Mass Is How Much and Volume Is How Spacious

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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KM: Penny Fingers

Kai shows Maile how the composition of a penny changed after 1982 and how the differences in mass can be detected by noting the differences in inertia. Duration 2:53.

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KM: Decisive Dimensions

Maile shows Kai the Decisive Dimensions Hands-On Chemistry activity, but to two end up in disagreement. Duration 2:27.

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