14.2 Density

• The formula for density is Mass/Volume
• Density is affected by temperature.


  True
• A block of wood has a density of 0.8 g/cm³
• Density is defined as mass per unit volume.


  True
• Water has a density of 1 g/cm³.


  True
• The mathematical symbol for density is ρ.


  True
• What does the variable V represent in the density formula?

  Volume
• The density of an object is 0.8 g/cm³ if it has a mass of 200 grams and a volume of 250 cm³.

  True
• A block of wood with a density of 0.8 g/cm³ and a volume of 150 cm³ has a mass of 120 grams.

  True
• What are the common units for density?

  kg/m³ and g/cm³
• What is the density of an object with a mass of 200 grams and a volume of 250 cm³?

  0.8 g/cm³
• Match the density unit with its components:

  g/cm³ ↔️ Grams and cubic centimeters

  kg/m³ ↔️ Kilograms and cubic meters
• Match the property with its formula:

  Density ↔️ \frac{m}{V}</latex>

  Mass ↔️ $m$

  Volume ↔️ $V$
• What is density defined as?

  Mass per unit volume
• How do you calculate density if you are given mass and volume?

  Divide mass by volume
• What is the density of water in $g / cm^{3}$?


  1 g/cm³
• A block with a mass of 200 grams and a volume of 250 cm³ has a density of 0.8 g/cm³
• A block with a mass of 200 grams and a volume of 250 cm³ has a density of 0.8 g/cm³
• What is the formula for calculating density?

  Density = Mass / Volume
• What does the variable m represent in the density formula?

  Mass
• What is the density of an object with a mass of 200 grams and a volume of 250 cm³?

  0.8 g/cm³
• What is the formula to find volume when density and mass are known?

  V = m / ρ
• Density is defined as the mass per unit volume
• Match the density unit with its context:

  kg/m³ ↔️ Larger objects

  g/cm³ ↔️ Smaller objects
• The units of density are used to measure how much mass is packed into a given volume
• Water has a density of approximately 1 g/cm³ or 1000 kg/m³
• What is the formula to calculate density when mass and volume are known?

  $\rho =$$\frac{m}{V}$
• Order the materials from highest to lowest density:

  1️⃣ Gold

  2️⃣ Lead

  3️⃣ Iron

  4️⃣ Aluminum

  5️⃣ Wood

  6️⃣ Water

  7️⃣ Air
• Water between 0°C and 4°C expands upon cooling, causing its density to decrease
• What are the common units for density?

  $g / cm^{3}$ and kg / m^{3}</latex>
• What is density a measure of?

  Mass in a given volume
• What is the Greek letter used to represent density?

  Rho
• What is the formula for density?

  $\rho =$$\frac{m}{V}$
• What is the formula for calculating density?

  Density = Mass / Volume
• In the density formula, the variable ρ represents the density
• Steps to calculate density given mass and volume

  1️⃣ Identify the mass and volume values

  2️⃣ Substitute the values into the density formula

  3️⃣ Calculate the density
• What is the formula to find mass when density and volume are known?

  m = ρ × V
• What is the volume of a metal object with a mass of 240 g and a density of 6 g/cm³?

  40 cm³
• The unit g/cm³ is used for smaller objects and liquids.


  True
• What is the approximate density of water in g/cm³?

  1 g/cm³