David Sang Solutions for Chapter: Making Measurements, Exercise 1: Questions

A rectangular block of wood has dimensions $240 \mathrm{mm}\times 20.5 \mathrm{cm}\times 0.40 \mathrm{m}$. Calculate its volume in ${\mathrm{cm}}^3$.

Ten identical lengths of wire are laid closely side-by-side. Their combined width is measured and found to be $14.2 \mathrm{mm}$. Calculate the radius of a single wire.

Ten identical lengths of wire are laid closely side-by-side. Their combined width is measured and found to be $14.2 \mathrm{mm}$. Calculate the volume in ${\mathrm{mm}}^3$ of a single wire if its length is $10 \mathrm{cm}$ (volume of a cylinder$=\mathrm{\pi }{r}^{2}h,$ where $r=$radius and $h=$height$)$.

The Volume of a piece of wood $($which floats in water$)$ can be measured as shown. Write a brief paragraph to describe the procedure. State the volume of the wood.