MECHANICAL PROPERTIES OF MATTER

MECHANICAL PROPERTIES
OF MATTER
Notes and Comments
Mess, length , time and their units. The SI units, brief indications of their bases e.g. the facts that the kg is
based on a prototype, the metre on a number of wavelengths. Commonly
used multiples and submultiples.
(Precise definitions of the SI units are not required).
Use of micrometer screw gauge Practical use including use of vernier calipers. Theory of operation of
and vernier. vernier scale . (Types other than 10 division forward-reading are excluded).
Volume measurement, density , Densities of regular solids by weighing and mensuration . Densities of
relative densi y Irregular solids by weighing and liquid displacement . Densities of liquids by
weighing a standard volume. (Density calculations involving alloys or
mixtures of liquids will not be set). Rlative densities of l i q u i d s by hydrometer
{sec_intcr_ unci c Arcl^i^^^ ^Ics` PiinciplO)..