Waec Model Questions Vol1 2020 Physics Question 1

Practice practical question 1 from the 2020 Waec Model Questions Vol1 Physics examination. This question covers Measurements and Units .

Waec Model Questions Vol1 2020 Physics Practical

Topic: Measurements and Units

Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • PHYSICS • practical

A metal rod is to be measured for its length using two different instruments. The measurements obtained are: - Metre rule reading: 1.02 m (instrument has a zero error of –0.2 cm) - Vernier caliper reading: 101.5 cm (instrument has a zero error of +0.1 mm) Using the data provided, answer the following:

Question Parts

( a )

Correct each reading for its zero error and give the corrected length in metres.

( b )

Calculate the average length of the rod from the two corrected measurements.

( c )

Determine the percentage discrepancy between the two corrected measurements using the average length as the reference.

( d )

List two possible sources of error in the measurements and suggest one way to minimise each.

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About This Question

This is Waec Model Questions Vol1 2020 Physics Question 1. It is a practical question from the 2020 Waec Model Questions Vol1 Physics examination.

The question covers Measurements and Units .

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