Waec Model Questions Vol1 2023 Physics Question 1

Practice practical question 1 from the 2023 Waec Model Questions Vol1 Physics examination. This question covers Measurements and Units .

Waec Model Questions Vol1 2023 Physics Practical

Topic: Measurements and Units

Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2023 • PHYSICS • practical

A metal rod is to be measured for its length using two different instruments: a wooden metre rule (MR) and a digital vernier caliper (VC). The rod is placed on a flat table and the following readings are recorded: MR readings (cm): 24.3, 24.5, 24.4 VC readings (cm): 24.38, 24.42, 24.40 The experimenter is required to analyse the data and comment on the reliability of the two instruments.

Question Parts

( a )

Calculate the average length obtained with the metre rule and with the vernier caliper.

( b )

Find the percentage difference between the two average lengths.

( c )

State which instrument is more precise and give a brief justification.

( d )

Identify two possible sources of systematic error for each instrument and suggest one practical method to minimise each error.

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About This Question

This is Waec Model Questions Vol1 2023 Physics Question 1. It is one of the practical questions from the 2023 Waec Model Questions Vol1 Physics examination.

The question covers Measurements and Units .

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