Essential Data for Physics

                       Data For Physics

Quantities	Name of S.I Unit	Equation of	C.G.S Unit	M.K.S Unit	F.P.S Unit
Length	m	(L)	cm	m	ft
Mass	Kg	(M)	gm	kg	ib
Time	s	(T)	s	s	s
Velocity/Speed			cms-d1	ms-1	fts-1
Momentum			gmcms-1	kgms-1	ibfts-1
Force	N		dyne	n	poundal
Work	J		arg	j	Ft-poundal
Power	W		args-1	js-1	ift-poundal-s-1
Energy	J		arg	j	ift-poundal-s-1
Pressure	Pa			nm-2	--
Density			gm cm-3	kgm-3 ibgt-3	--
Volume	M3	[L-1]	cm-3	m3	ft3
Frequency	Hz	[T-1]	s-1	s-1	s-1
Wave Length	M	[L]	cm	m	ft
Heat	J		Calorie	j	B.th.eu
Heat capacity			j/c	J/F
Specific latent heat			j/kg	j/kg	j/ibs
Luminas intensity	Cd	[j]	--	--	--
Power of lens	d		--	--	--
Electric Field	--	--	--	--	--
Strength electric Intensity
Electric potential	v		--	--	--
Resistance

SPECIFIC GRAVITY

Name of Substance	SPECIFIC GRAVITY	Name of Substance	SPECIFIC GRAVITY
W. Iron	7.8	Bronze	8.7
Cast Iron	7.0	Salt (Common)	2.17
Steel	7.7-7.9	Chalk (Air-Dry)	2.0
Brass	4.7-4.8	Wax (Sealing)	1.8
Marble	2.5-2.8	Sugar	1.59
Aluminum	2.7	Glass (Flint)	2.9-5.9
Cork	0.22-0.29	Glass (Crown)	2.5
Wax (Bess)	0.95-0.96

  

Specific Heat of Some Substance

Name of Substance	Specific Heat	Name of Substance	Specific Heat
Aluminum	0.219	Mercury	0.033
Brass	0.087	Silver	0.056
copper	0.93	Nickel	0.106
Iron	0.119	Tin	0.055
Lead	0.032	German Silver	0.095
Marble	0,215	Glycerin	0.58
Glass (Flint)	0.12	Kerosene	0.65
Ice	0.502

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