Question

Find the fundamental unit involved in the following derived units

1) Newton -
2) Watt -
3) Joule-
4) pascal -
5) cubic metre -
​

Answer 1

Answer:

1 force

3 energy

4 pressure

Answer 2

Fundamental units are the seven SI base units;

• Meter(m), Kilogram(kg), Second(s), Ampere(A), Kelvin(K), Mole(mol) and Candela(cd).

• All derived units are derived from these seven fundamental units of measurement.

The fundamental units involved  in the following derived units are;

1. Newton(N)

• Newton is the unit of force.

           Force = Mass x Acceleration

                      = (Mass x Meter) / Second²

                  N = (kg x m) / s²

• Fundamental units in Newton are kilogram(kg) , meter(m) and second(s)                                      

2. Watt(W)

• Watt is the unit of power.

            Power = Work / Time

                        = (Mass x Meter²) / Second³

                    W = (kg x m²) / s³

• Fundamental units in Watt are kilogram(kg) , meter(m) and second(s)

3. Joule(J)

• Joule is the unit of energy.

           Energy = Power x Time

                        = (Mass x Meter²) / Second²

                    J = (Kg x m²) / s²

• Fundamental units in Joule are kilogram(kg) , meter(m) and second(s)

4. Pascal(Pa)

• Pascal is the unit of pressure.

             Pressure = Force / Area

                             = Mass / (Meter x second²)

                        Pa = Kg / (m x s²)

• Fundamental units in Pascal are kilogram(kg) , meter(m) and second(s)

5. Cubic meter(m³)

• Cubic meter = meter x meter x meter

                        m³ = m x m x m

• The fundamental unit in cubic meter is meter(m).