The crackling noise produced by aluminum roofing sheets on a house during a hot sunny…

Physics WAEC 2015

The crackling noise produced by aluminum roofing sheets on a house during a hot sunny day is a result of

  • thermal equilibrium of the sheets
  • conduction of heat by the sheets
  • contraction of the sheets
  • expansion of the sheets checkmark

The correct answer is: D

Explanation

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