Neco Model Questions Vol1 2024 Physics Question 4

Practice practical question 4 from the 2024 Neco Model Questions Vol1 Physics examination. This question covers Forces, Hooke's law, Spring constant, Experimental uncertainties .

Neco Model Questions Vol1 2024 Physics Practical
Topics: Forces Hooke's law Spring constant Experimental uncertainties
Question 4 NECO_MODEL_QUESTIONS_VOL1 • 2024 • PHYSICS • practical

A helical spring is hung vertically from a fixed support. A set of standard masses is added successively and the corresponding extensions of the spring are recorded. The data obtained are shown below. | Mass (kg) | Extension (cm) | |-----------|----------------| | 0.10 | 1.2 | | 0.20 | 2.4 | | 0.30 | 3.5 | | 0.40 | 4.8 | | 0.50 | 5.9 | (Assume g = 9.81 m s⁻² and that the spring obeys Hooke’s law within the range of the experiment.)

Question Parts

( a )
Convert the masses to loads (N) and plot load (N) against extension (m). From the straight‑line graph, determine the gradient and calculate the spring constant k. State the relationship you used.
( b )
Using the spring constant obtained in part (a), calculate the load required to stretch the spring by 5.0 cm. Show your calculation.
( c )
A wooden block of mass 0.25 kg is placed on a horizontal table and attached to the same spring. The block is pulled horizontally with a constant force of 2.0 N. Predict the extension of the spring and comment on whether Hooke’s law is still applicable for this extension.
( d )
Identify three systematic sources of error that could affect the determination of the spring constant and suggest a method to minimise each error.

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About This Question

This is Neco Model Questions Vol1 2024 Physics Question 4. It is one of the practical questions from the 2024 Neco Model Questions Vol1 Physics examination.

The question covers Forces, Hooke's law, Spring constant, Experimental uncertainties .

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