Neco Model Questions Vol1 2017 Physics Question 1

Practice essay / theory question 1 from the 2017 Neco Model Questions Vol1 Physics examination. This question covers Measurements and Units, Error analysis, Hooke's law .

Neco Model Questions Vol1 2017 Physics Essay / Theory
Topics: Measurements and Units Error analysis Hooke's law
Question 1 NECO_MODEL_QUESTIONS_VOL1 • 2017 • PHYSICS • essay
Neco Model Questions Vol1 2017 Physics Question 1 diagram

A laboratory setup is used to determine the mass of an unknown solid using a spring balance and a set of standard masses. The apparatus is shown in the diagram.

Question Parts

( a )
The spring balance reads 0.250 N when the pan is empty (zero error). When the unknown solid is placed, the reading is 3.45 N. Determine the true weight of the solid, correcting for zero error.
( b )
Given g = 9.80 m s⁻², calculate the mass of the solid in kilograms.
( c )
The student records the extension of the spring as 12.0 cm for the unknown solid and 1.0 cm for the zero‑error reading. Assuming the spring obeys Hooke's law and the spring constant is unchanged, determine the spring constant k in N m⁻¹.
( d )
If the student wants to measure a mass of 0.200 kg using the same spring, estimate the expected extension (in cm) ignoring zero error.

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About This Question

This is Neco Model Questions Vol1 2017 Physics Question 1. It is one of the essay questions from the 2017 Neco Model Questions Vol1 Physics examination.

The question covers Measurements and Units, Error analysis, Hooke's law .

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