Understanding Vernier Calipers

What is a vernier caliper used for in physics?

• For calculating electrical resistance.

• To measure temperature accurately.

• A vernier caliper is used for precise measurement of length, depth, and internal/external dimensions.

• To determine the weight of an object.

How do you read the measurement on a vernier caliper?

• Measure the main scale reading and add the aligned sliding scale reading.

• Read only the main scale reading.

• Use the sliding scale reading alone.

• Subtract the sliding scale reading from the main scale reading.

If the main scale reads 5.0 cm and the vernier scale reads 0.3 cm, what is the total measurement?

• 6.0 cm

• 5.3 cm

• 5.0 cm

• 5.6 cm

What is the least count of a typical vernier caliper?

• 0.02 mm

• 0.1 mm

• 0.5 mm

• 1 mm

How do you calculate the error in measurement using a vernier caliper?

• Error = Measured Value + True Value

• Error = True Value - Measured Value

• Error = Measured Value - True Value (or Least Count as potential error)

• Error = Measured Value / True Value

If the main scale reading is 7.5 cm and the vernier scale reading is 0.2 cm, what is the final measurement?

• 7.7 cm

• 7.5 cm

• 6.9 cm

• 8.0 cm

Explain the significance of the zero error in a vernier caliper.

• The significance of zero error in a vernier caliper is that it can lead to systematic measurement errors, affecting the accuracy of the readings.

• Zero error is only relevant for digital calipers.

• Zero error has no impact on measurement accuracy.

• Zero error indicates the caliper is functioning correctly.

What is the formula to calculate the total length measured by a vernier caliper?

• Total Length = Main Scale Reading - Vernier Scale Reading

• Total Length = Vernier Scale Reading x Main Scale Reading

• Total Length = Main Scale Reading / Vernier Scale Reading

• Total Length = Main Scale Reading + Vernier Scale Reading

How can you determine the diameter of a cylindrical object using a vernier caliper?

• Measure the diameter by using a ruler along the length of the cylinder.

• Measure the diameter by placing the cylinder between the jaws of the vernier caliper and reading the scale.

• Estimate the diameter by comparing it to a known object.

• Calculate the diameter by measuring the circumference with a string.

What are the advantages of using a vernier caliper over a ruler?

• Easier to carry than a ruler

• Only measures length without additional features

• Lower cost compared to a ruler

• The advantages of using a vernier caliper over a ruler include higher precision, the ability to measure internal and external dimensions, and the capability to measure depths.