Vernier Caliper Measurement Worksheet
Physics Laboratory Activity - Multiple Readings
📏 Objective
To measure the length of various objects (eraser, duster, small objects) using Vernier calipers with multiple readings for accuracy and calculate the mean of measurements.
📚 Instructions
How to use Vernier Calipers:
- MSR (Main Scale Reading): Read the main scale value just before the zero of the vernier scale
- VSR (Vernier Scale Reading): Find which vernier scale line coincides with any main scale line
- LC (Least Count): Usually 0.1 mm or 0.02 mm for standard calipers
- Take 3 readings: Measure each object three times for accuracy
- Calculate mean: Final result = (Reading 1 + Reading 2 + Reading 3) / 3
🔬 Formula
Individual Reading = MSR + (VSR × LC)
Mean Reading = (R1 + R2 + R3) / 3
Mean Reading = (R1 + R2 + R3) / 3
📊 Measurements
📏 Eraser
cm
Reading 1
-- cm
Reading 2
-- cm
Reading 3
-- cm
Mean Length: -- cm
🧽 Duster
cm
Reading 1
-- cm
Reading 2
-- cm
Reading 3
-- cm
Mean Length: -- cm
🔍 Small Object 1
cm
Reading 1
-- cm
Reading 2
-- cm
Reading 3
-- cm
Mean Length: -- cm
🔍 Small Object 2
cm
Reading 1
-- cm
Reading 2
-- cm
Reading 3
-- cm
Mean Length: -- cm
📝 Observations & Results
Summary of All Measurements
| Object | Reading 1 (cm) | Reading 2 (cm) | Reading 3 (cm) | Mean Length (cm) |
|---|---|---|---|---|
| Eraser | -- | -- | -- | -- |
| Duster | -- | -- | -- | -- |
| Small Object 1 | -- | -- | -- | -- |
| Small Object 2 | -- | -- | -- | -- |
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