Question

10. Define mass. State its (i) S.I. (ii) C.G.S and
(iii) F.P.S units. How are they related ?​

Answer 1

Answer:

Mass, in physics, quantitative measure of inertia, a fundamental property of all matter. It is, in effect, the resistance that a body of matter offers to a change in its speed or position upon the application of a force. The greater the mass of a body, the smaller the change produced by an applied force.

1. Kilogrammes (kg)
2. grams (g)
3. pound (lb)

$10 {}^{0} kg = {10}^{3} g = 2.205lb$

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Answer 2

Answer:

Mass:

The measure of the amount of matter in a body.

S.I System :

The International System of Units(SI) is the modern form of the metric system. It is the only system of measurement with an official status in nearly every country in the world.

C.G.S :

The centimetre–gram–second system of units (abbreviated CGS or cgs) is a variant of the metric system based on the centimetre as the unit of length, the gram as the unit of mass, and the second as the unit of time.

F.P.S :

The foot–pound–second system or FPS system is a system of units built on three fundamental units: the foot for length, the (avoirdupois) pound for either mass or force , and the second for time.

relation :

c.g.s. system of units: The unit of length is centimetre (cm). The unit of mass is gram (g). The unit of time is second (s)

m.k.s. system of units: The unit of length is the metre (m). The unit of mass is the kilogram (kg). The unit of time is second (s)

f.p.s. system of units: The unit of length is a foot (ft). The unit of mass is a pound (Lb). The unit of time is second (s). This system is no more in use.

S.I. System: In SI system of units there are 7 fundamental units (mass (kg), length (m), time (s), temperature (k), luminous intensity (cd), electric current (A), and amount of substance (kmol)) and 2 supplementary units (plane angle (rad) and solid angle (sd))