Narrator talks about Si system, which is also can be said as “mks” (meter-kilogram-second), and English Imperial System. The video describes quantity of mass, force, weight, power, pressure, density, and specific volume. The author also mentions compound units that created from the combination of the base units.
The last video “Introduction to Pressure” gives a detailed meaning of pressure, its usage, and units. The narrator shows the difference between gauge, absolute, and atmospheric pressure and how they applied in the engineering calculations. Total pressure is the sum of gauge and atmospheric pressure. Knowing at least two of them would give the full picture of the particular mechanism used on the system or body. The video also demonstrates important concept on the pressure with