Neco Model Questions Vol1 2019 Physics Question 1

Practice essay / theory question 1 from the 2019 Neco Model Questions Vol1 Physics examination. This question covers Measurements and Units, Error analysis, Simple harmonic motion .

Neco Model Questions Vol1 2019 Physics Essay / Theory
Topics: Measurements and Units Error analysis Simple harmonic motion
Question 1 NECO_MODEL_QUESTIONS_VOL1 • 2019 • PHYSICS • essay
Neco Model Questions Vol1 2019 Physics Question 1 diagram

A simple pendulum experiment is set up to determine the acceleration due to gravity (g). The length of the string from the point of suspension to the centre of the bob is measured as 1.00 m (±0.01 m). The bob is a small dense sphere. Using a digital stopwatch, a student records the time for 20 complete oscillations as 40.2 s (±0.2 s). The experiment is performed on a level table in a quiet laboratory.

Question Parts

( a )
Calculate the period of the pendulum and use it to determine the experimental value of g. Show all steps and state the final value of g with its appropriate number of significant figures.
( b )
Identify two possible systematic errors in this experiment and explain qualitatively how each would affect the calculated value of g (whether it would be higher or lower than the true value).
( c )
Suggest two practical modifications that could be made to improve the accuracy of the measurement of g.

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About This Question

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

The question covers Measurements and Units, Error analysis, Simple harmonic motion .

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