Question

What is heavier on the surface of Earth: 1 m³ cotton or 1 m³ of Iron?{provided: ρ_iron>ρ_cotton}

• A. cotton
• B. Iron
• C. Both will have equal weight
• D. Both will have equal mass

Answer 1

The correct option is B

Iron

density = (Mass)/(volume)

$m_{iron}={\rho }_{iron}\times 1$
$m_{cotton}={\rho }_{cotton}\times 1$

As ${\rho }_{iron}>{\rho }_{cotton}$

$m_{iron}>m_{cotton}$

$weigh{t}_{iron}>weigh{t}_{cotton}$