Question

A block of metal has dimensions of 2 cm by 5 cm by 6 cm. The block weighs 780 g. From this information, calculate the mass, volume and density.

Answer 1

$\huge\fbox{Answer ☘}$

• Given that - The block weighs 780g

therefore ,

$\bold\blue{mass \: = 780g}$

$\bold\green{----------------}$

• Now ,

dimensions of the given block are

‎ ‎ ‎ ‎ ‎‎ ‎ ‎ ‎ ‎‎ ‎ ‎ ‎ ‎‎ ‎ ‎ ‎ ‎‎ ‎ ‎ ‎ ‎‎ ‎ ‎ ‎ ‎‎ ‎ ‎ 2 cm × 5 cm × 6 cm

$\bold\purple{Volume = l \times b \times h }\\\\ \bold \purple{⇢ (2 \times 5 \times 6) \: cm {}^{3}} \\\\\bold\purple{ ⇢60cm {}^{3}}$

therefore ,

$\bold\blue{Volume = 60cm {}^{3}}$

$\bold\green{----------------}$

• Further ,

$\bold\pink{Density = \frac{mass}{volume} }\\ \\ \bold\pink{ ⇢ \cancel\frac{780 \: g}{60 \: cm {}^{3} } } \\ \\ \bold\pink{⇢13g \: cm {}^{ - 3} }$

therefore ,

$\bold\blue{Density \: = 13 \: g \: cm {}^{ - 3} }$

hope helpful~

Answer 2

Answer:

Step-by-step explanation:

Mass = 780g

Volume = 2 x 5 x 6 = 60 cm³

Density = Mass/Volume

= 780/60

= 13 g/cm³