Measurement of Length
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| Micrometer Screw Gauge |
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| Vernier Calipers |
In this practical, we were taught how to use a vernier calipers and micrometer screw gauge(as seen from above). -We also used a metre rule but it has already been taught before-
The smallest reading for the vernier calipers(one vernier division) and the micrometer screw gauge(one thimble division) are both 0.01cm.
In this practical, we did 3 experiments. Each experiment required to use of an apparatus that could be used to measure length.
Experiment 1:
We had to measure the height of our seat from the floor from 4 different positions. This is very basic. The average height of the seat from the 4 readings should be taken as that would make the result more accurate.
Experiment 2:
Use the vernier calipers to measure both the internal and external diameters of a beaker at 3 different positions. Find the average of the 3 readings as then, the results would be more accurate.
Experiment 3:
Use the micrometer screw gauge to measure the diameter of the wire and ball bearings at 3 positions. Find the average of the results as it would be more accurate that way.
Here are links to show you how to use the vernier calipers and micrometer screw gauge.
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