Masses - Kilogram & Pound

Purpose

To compare the pound and the kilogram.

Equipment

Two masses, as photographed.

Images

Description

Two weights, as shown. Can be passed around among the students.

References

Robert A. Nelson, Foundations of the International System of units (SI), TPT 19, 596-613 (1981). Jerry D. Wilson, Metric bargains, TPT 22, 524 (1984). Carl C. Sartain, Magnitude of the Newton, AJP 21, 144 (1953).