Vernier Caliper Reading Trainer
Practice reading main-scale and vernier alignment quickly, with guided checking steps and instant feedback.
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Learning objectives
- Use SI quantities, units, prefixes and dimensional analysis.
- Select and justify measuring instruments by range and precision
A vernier caliper open beside a metal block. Drag the sliding jaw to close it on the object.
- Check
- Close the jaws onto the object first.
Try this
0 of 3 doneDrag the sliding jaw until it just touches the object. (not done yet)
The jaws should touch the object without squeezing it; the caliper then shows the object's width.
Read the caliper and enter the width to 0.01 cm. (not done yet)
Reading = main scale reading just before the vernier zero + (aligned vernier line × 0.01 cm).
Read three different objects. (not done yet)
With practice you can read a vernier in seconds: main scale first, then the one line that aligns.