Density, Population Density, and Force

learning_notes

Last updated: 8/16/2025

Key Concepts

  • Density is mass per unit volume, calculated as Density = Mass ÷ Volume.
  • Population density is calculated as People per unit area.
  • Force is calculated as Force = Pressure × Area.

Skills Covered

  • Calculating density given mass and volume.
  • Using population density to determine area or number of people.
  • Applying force equations in practical scenarios.

Example Problems

  • A wooden block has a mass of 300 grams and a volume of 100 cm³. What is its density?
  • A town has 50,000 residents and covers an area of 100 square miles. What is its population density?

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