The buoyant force is measured in which unit?

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Multiple Choice

The buoyant force is measured in which unit?

The buoyant force is a force, so it is measured in newtons. You can see this from Archimedes’ principle: F_buoy = ρ_fluid × g × V_submerged. Here ρ_fluid has units kg/m^3, g has units m/s^2, and V_submerged has units m^3. Multiplying gives (kg/m^3) × (m/s^2) × (m^3) = kg·m/s^2, which is a newton. The other options correspond to energy (joules), pressure (newtons per square meter), or acceleration (m/s^2), which are not units of force.

The buoyant force is a force, so it is measured in newtons. You can see this from Archimedes’ principle: F_buoy = ρ_fluid × g × V_submerged. Here ρ_fluid has units kg/m^3, g has units m/s^2, and V_submerged has units m^3. Multiplying gives (kg/m^3) × (m/s^2) × (m^3) = kg·m/s^2, which is a newton. The other options correspond to energy (joules), pressure (newtons per square meter), or acceleration (m/s^2), which are not units of force.

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