8.1 Density and Pressure

    Cards (71)

    • In the density formula, ρ (rho) represents density
    • Density affects buoyancy and fluid dynamics.

      True
    • What is the density of a rock with a mass of 2 kg and a volume of 0.001 m³?
      2000 kg/m³
    • What is the formula for pressure?
      P = F/A
    • 1 atm is equivalent to 101,325 Pascals.

      True
    • Match the pressure unit with its equivalent in Pascals:
      1 bar ↔️ 100,000 Pa
      1 atm ↔️ 101,325 Pa
      1 psi ↔️ 6895 Pa
    • What is density a measure of?
      Mass within a volume
    • The standard units for density are kg/m³ or g/cm³
      True
    • ρ represents density in the density formula

      True
    • What are the units for density?
      kg/m³ or g/cm³
    • Arrange the steps to calculate the density of an object:
      1️⃣ Measure the mass (m) of the object
      2️⃣ Measure the volume (V) of the object
      3️⃣ Divide the mass by the volume to find the density (ρ)
    • Match the pressure unit with its conversion factor:
      Pascal (Pa) ↔️ 1 N/m²
      Atmosphere (atm) ↔️ 101,325 Pa
      Bar ↔️ 100,000 Pa
    • Pressure is defined as the force applied per unit area
    • The variable P in the pressure formula represents pressure
    • Match the property with its formula and unit:
      Density ↔️ \rho = \frac{m}{V} (kg/m³)
      Pressure ↔️ P = \frac{F}{A} (Pa)
    • What is the formula for density?
      ρ=\rho =mV \frac{m}{V}
    • What are the standard units for density?
      kg/m³ or g/cm³
    • Match the pressure unit with its definition:
      Pa ↔️ Force per unit area
      psi ↔️ Pounds per square inch
      atm ↔️ Standard atmospheric pressure
      bar ↔️ 100,000 Pa
    • What are the standard units for pressure?
      Pa, atm, bars, psi
    • What is the density of a rock with a mass of 2 kg and a volume of 0.001 m³?
      2000 kg/m³
    • What is the definition of density in terms of mass and volume?
      Mass per unit volume
    • Density and pressure are used to describe fluids.

      True
    • If a force of 500 N is applied to an area of 0.5 m², the resulting pressure is 1000 Pa
    • In the density formula, 'm' represents mass
    • What is the density of water in kg/m³?
      1000 kg/m³
    • Steps to calculate density using the formula ρ=\rho =mV \frac{m}{V}
      1️⃣ Measure the mass of the object
      2️⃣ Measure the volume of the object
      3️⃣ Divide the mass by the volume
    • The formula for density is \rho = \frac{m}{V}
    • What is the standard unit for pressure?
      Pascal (Pa)
    • Match the pressure unit with its conversion factor:
      Pa ↔️ 1 N/m²
      atm ↔️ 101,325 Pa
      psi ↔️ ≈ 6895 Pa
      bar ↔️ 100,000 Pa
    • What is the conversion factor for Pascals (Pa)?
      1 N/m²
    • How many Pascals are in 1 bar?
      100,000 Pa
    • What is the definition of pressure?
      Force applied per unit area
    • Density is calculated as mass divided by volume.
    • Match the property with its formula and units:
      Density ↔️ ρ = m/V, kg/m³
      Pressure ↔️ P = F/A, Pa
    • A stone has a mass of 5 kg and a volume of 0.002 m³. What is its density?
      2500 kg/m³
    • What is density a measure of?
      Mass per volume
    • Match the substance with its approximate density in kg/m³:
      Water ↔️ 1000
      Iron ↔️ 7870
      Air ↔️ 1.225
      Aluminum ↔️ 2700
    • The standard unit for density is kilograms per cubic meter (kg/
    • Pressure is defined as force applied per unit area.

      True
    • The standard unit for pressure is the Pascal
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