Neco Model Questions Vol1 2023 Physics Question 1

Practice practical question 1 from the 2023 Neco Model Questions Vol1 Physics examination. This question covers Measurements and Units .

Neco Model Questions Vol1 2023 Physics Practical

Topic: Measurements and Units

Question 1 NECO_MODEL_QUESTIONS_VOL1 • 2023 • PHYSICS • practical

A student is required to determine the density of an unknown metal sample using the water‑displacement method and a calibrated balance. The balance reads 56.32 g for the metal. The volume of water displaced is obtained by reading the water level in a graduated cylinder before and after the metal is immersed: initial level = 120.0 mL, final level = 138.5 mL.

Question Parts

( a )

State the mass of the metal in kilograms and the volume displaced in cubic metres.

( b )

Calculate the density of the metal in kg·m⁻³ and also express it in g·cm⁻³.

( c )

The accepted density of the metal is 7.85 g·cm⁻³. Determine the percentage error of the experimental density.

( d )

List two possible sources of error in this experiment and suggest one way to minimise each.

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About This Question

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

The question covers Measurements and Units .

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