Waec Model Questions Vol1 2022 Physics Question 1

Practice essay / theory question 1 from the 2022 Waec Model Questions Vol1 Physics examination. This question covers Measurements and Units, Simple Pendulum, Error analysis .

Waec Model Questions Vol1 2022 Physics Essay / Theory
Topics: Measurements and Units Simple Pendulum Error analysis
Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2022 • PHYSICS • essay

A student is required to determine the acceleration due to gravity (g) using a simple pendulum. The apparatus consists of a thin string attached to a small spherical bob, suspended from a fixed pivot. The length of the pendulum is measured with a metre rule placed vertically beside the string, and the time for 20 complete oscillations is recorded with a digital stopwatch. The diagram shows the pendulum, the metre rule and the stopwatch.

Question Parts

( a )
Explain how the length of the pendulum should be measured so that systematic error is minimised.
( b )
The recorded times for 20 oscillations are 40.2 s, 40.5 s and 40.1 s. Calculate:
( c )
Identify two possible sources of error in this experiment and suggest a method to reduce each error.

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About This Question

This is Waec Model Questions Vol1 2022 Physics Question 1. It is one of the essay questions from the 2022 Waec Model Questions Vol1 Physics examination.

The question covers Measurements and Units, Simple Pendulum, Error analysis .

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