Waec Model Questions Vol1 2019 Physics Question 1

Practice practical question 1 from the 2019 Waec Model Questions Vol1 Physics examination. This question covers Measurements and Units .

Waec Model Questions Vol1 2019 Physics Practical

Topic: Measurements and Units

Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2019 • PHYSICS • practical

A cylindrical metal rod is to be measured for its internal diameter using a vernier caliper. The true diameter supplied by the manufacturer is 20.00 mm. The student records three successive readings as follows: 20.12 mm, 20.08 mm and 20.15 mm. Using these data, answer the following:

Question Parts

( a )

Calculate the average of the three readings.

( b )

Determine the percentage error of the average reading relative to the true value.

( c )

Identify two possible systematic errors and two random errors that could affect the measurement.

( d )

Suggest one practical method to reduce each type of error identified in part (c).

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About This Question

This is Waec Model Questions Vol1 2019 Physics Question 1. It is one of the practical questions from the 2019 Waec Model Questions Vol1 Physics examination.

The question covers Measurements and Units .

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