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A solid cube of aluminum is 1.5cm on each edge. The density of aluminum is...

Physics
JAMB 2024

A solid cube of aluminum is 1.5cm on each edge. The density of aluminum is 2700kgm\(^{-1}\). Find the mass of the cube.

  • A. 7.5g
  • B. 9.1g
  • C. 12.0g
  • D. 15.0g
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Correct Answer: Option B
Explanation

Density = \(\frac{\text{mass}}{\text{volume}}\)

Volume of solid cube = s\(^3\) = 1.5\(^3\) = 3.375cm\(^3\)

Density = 2700kgm\(^{-3}\) ⇒ 2.7gcm\(^{-3}\)

2.7 = \(\frac{\text{m}}{3.375}\)

mass of the cube = 2.7 x 3.375 = 9.1125g \(\approxeq\) 9.1g

There is an explanation video available below.


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Explanation Video

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JAMB CBT Software 2025 - Free Download
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