1 General Mental and Psychological Abilities · 1.4.1 Mensuration and counting

1.4.1.6 Melting, recasting, water flow and percentage change in dimensions

When a solid is melted, poured, dug out or flows through a pipe, volume is conserved; when its size is scaled, lengths change by k, areas by k² and volumes by k³.

  • APPSC Group 1
  • Advanced level
  • 6 min read
  • Full course

Key terms

  • melting
  • recasting
  • volume conserved
  • number of pieces
  • wire
  • immersion
  • rise in water level
  • water flow
  • pipe
  • canal
  • irrigation
  • earth dug out
  • embankment
  • scale factor
  • percentage change
  • surface area after recasting

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Common trapsFoundation
  5. Quick revisionFoundation

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