Question

two metal blocks are the same size. block a has a mass of 100 g, and block b has a mass of 80 g.
the formula for density is $density = \frac{mass}{volume}$
which statement best compares their densities?
a block a has a lower density than block b.
b block b has a higher density than block a.
c block a has a greater density than block b.
d both blocks have the same density because they are the same size.

Explanation:

Step1: Analizar la fórmula de densidad

La densidad ($
ho$) se calcula como $
ho=\frac{m}{V}$, donde $m$ es la masa y $V$ es el volumen.

Step2: Comparar masas y volúmenes

Dado que los bloques son del mismo tamaño (igual volumen $V$), y $m_A = 100\ g$, $m_B=80\ g$.
Como $
ho_A=\frac{100}{V}$ y $
ho_B=\frac{80}{V}$, y $100>80$, entonces $
ho_A>
ho_B$.

Answer:

C. Block A has a greater density than Block B.