Week - 1 - Consistency of Units

AIM:

To write given measurements in different unit system.

1. Mass(M), 1kg=1000gm

2.Length(L), 1m=1000mm

3.Time(t), 1sec=1000ms

4.Force(F), F=M*a = gm* mm/ms2

kg*m/s2 =1N

5.Stress, S= Force/Area

=N/mm2 =Mpa

6.Energy, E=N*mm= N* m/1000= m j

7.Density= kg/m3 = E-6 gm/mm3

8.Young's Modulus= 2.1E11 N/m2

=2.1E5 N/mm2

9.Velocity v=15.65 m/s

=15.65 mm /ms

10.Gravity, g=9.81 m/s2

=9.81E-3 mm/ms2

Mass Lenth Time Force Stress Energy Density Young's Modulus Velocity g

kg cm ms 1e4N 100Mpa 1e-4 j 1e-3 2.1e3 1.56 9.81e-4

kg cm s 1e-2N 1e2 pa 1e-4 j 1e-3 2.1e+9 1560 981

g cm s 1e-5 N 0.1 pa 1e-7 j 1e3 2.1e+12 1560 981

g cm ms e+7 N 100Gpa 1e5 j 1e3 2.1 1.56e-3 9.81e-10

g mm s 1e-6N pa 1e-9 J 1e-6 2.1e7 1.56e4 9810

kg mm s 1e-3 N kpa 1e-6 J 1e-6 2.1e8 15650 9810

kg mm ms kN Gpa J 1e-6 2.1e+21 15.65 9.81e-3