Waec Model Questions Vol1 2023 Physics Question 1

Practice essay / theory question 1 from the 2023 Waec Model Questions Vol1 Physics examination. This question covers Measurements and Units, Experimental Determination of g, Error analysis .

Waec Model Questions Vol1 2023 Physics Essay / Theory

Topics: Measurements and Units Experimental Determination of g Error analysis

Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2023 • PHYSICS • essay

Waec Model Questions Vol1 2023 Physics Question 1 diagram

A student sets up a simple pendulum to determine the acceleration due to gravity. The length of the string is measured with a metre rule and recorded as 0.95 m. The student uses a digital stopwatch to time 20 complete oscillations and obtains a total time of 40.2 s. The bob has a mass of 0.50 kg and the amplitude of swing is kept small (≈5°).

Question Parts

( a )

Calculate the period of one oscillation of the pendulum.

( b )

Using the period obtained in part (a), calculate the value of the acceleration due to gravity g. (Take g = 4π²L / T²).

( c )

Identify two possible sources of systematic error in this experiment and explain qualitatively how each would affect the calculated value of g.

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About This Question

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

The question covers Measurements and Units, Experimental Determination of g, Error analysis .

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