WHY MEASURING THE FINAL MASS IS IMPORTANT IN SUCH EXPERIMENTS?
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Weigh a small parcel (about 500 g), using a 100 g hanger and 100 g slotted masses on one side, the parcel on the other. Since this is only a demonstration to introduce a problem do not labour this experiment. Do not add smaller masses to make the weighing more accurate. It is only a rough measurement.
Weigh a small parcel (about 500 g), using a 100 g hanger and 100 g slotted masses on one side, the parcel on the other. Since this is only a demonstration to introduce a problem do not labour this experiment. Do not add smaller masses to make the weighing more accurate. It is only a rough measurement.Weigh a letter to the nearest 10 g by the same method, using the 10 g slotted masses.
Weigh a small parcel (about 500 g), using a 100 g hanger and 100 g slotted masses on one side, the parcel on the other. Since this is only a demonstration to introduce a problem do not labour this experiment. Do not add smaller masses to make the weighing more accurate. It is only a rough measurement.Weigh a letter to the nearest 10 g by the same method, using the 10 g slotted masses.Ask whether the beam will weigh a single hair. It fails, suggesting the need for a more sensitive balance. This could lead on to:
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