Civil Engineering - SI Units - Discussion

Discussion :: SI Units - Section 1 (Q.No.7)

7. 

In S.I. system, the symbol for density is

[A]. N/m3
[B]. kg/m3
[C]. m3/s
[D]. kg

Answer: Option B

Explanation:

No answer description available for this question.

Sowmya said: (Jun 11, 2015)  
Why in S.I system density is Kg/m3?

And why not in S.I system surface tension is Kg/m but N/m?

Yashodha said: (Aug 11, 2015)  
Density = Mass/volume.
ρ = m/v.
S.I unit is kg/m3.

Maruthi said: (Jun 29, 2016)  
Density = mass/volume.
Mass in kg and volume in m^3 so,
density obtained in kg/m^3.

Suraj said: (Nov 26, 2016)  
In S. I system force and pressure written as N.

So, unit for surface tension is N/m and unit for density is kg/m3.

Vinayak Powar said: (Dec 19, 2017)  
I think it should be N/m3.

Jayprakash said: (Jan 4, 2018)  
Mass density - kg/m3.

Weight density - N/m3.

Maddy said: (Feb 8, 2019)  
Density = mass/volume (kg/m^3).
Surface Tension = force/unit length(N/m).
Force (=N) = m (=kg) * a (=m/s^2).
Therefore, ρ = m/v.
S.I unit is kg/m^3.

Mukesh K Patel said: (Oct 2, 2019)  
Density,
Mass density = kg/m3.
Weight density = N/m3.
So, Ans is also A and B?

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