Question

1) Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has twice as much

A) inertia.

B) mass.

C) volume.

D) all of the above

E) none of the above

Answer 1

(i) Inertia of any solid object is directly proportional to mass, i.e

Thus Inertia od 2kg block of solid iron has twice as much as inertia as a 1kg block.

(ii). Mass of 2 kg block is already given to be twice as much as of 1kg block.

(iii). Density= Mass / Volume

thus

Then for same material(here Iron), Volume is directly porportional to the Mass, i.e.

Hence Volume of 2kg block is twice as that of the 1kg block.

Then from all the arguments above we can conclude that option D is the correct one.