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SI Units by Mind Map: SI Units

1. Length

1.1. Metre (m)

1.1.1. Derived Units

1.1.1.1. meters per second (m/s) (unit of speed)

1.1.1.2. meters per second squared (m/s^2) (unit of acceleration)

1.1.1.3. meters squared (m^2)

1.1.1.4. cubic meter (m^3) (unit of volume)

1.2. Definition

1.2.1. Length is the measure of distance

2. Electric Current

2.1. Definition

2.1.1. Electric Current is the measurement of the rate of flow of electric charge past a point or region.

2.2. Ampere (A)

2.2.1. Derived Units

2.2.1.1. Electric potential difference, electromotive force, Volt (V)

2.2.1.2. Electric charge, quantity of electricity, Coulomb (C)

2.2.1.3. Electric resistance, Ohm (Ω)

2.2.1.4. Capacitance, Farad (F)

2.2.1.5. Electric conductance, Siemens (S)

2.2.1.6. Magnetic flux, Weber (Wb)

2.2.1.7. Inductance, Henry (H)

2.2.1.8. Magnetic flux density, Tesla (T)

3. Amount of a Substance

3.1. Mole

3.1.1. Derived Units

3.1.1.1. Mole per cubic meter ( mol/m^3 )

3.1.1.2. Catalytic Activity - Katal ( kat )

3.1.1.3. Joule per mole ( J/mol )

3.1.1.4. Joule per mole kelvin (J/molK )

3.1.1.5. Katal per cubic meter ( kat/m^3 )

3.1.1.6. Chemical Concentration - Molal ( mol/kg )

3.2. Definition

3.2.1. Amount of a Substance is a measure of the number of entities (atoms, molecules, etc) in a substance

4. Temperature

4.1. Definition

4.1.1. Temperature is a measure of the average kinetic energy of particles in a system.

4.2. Kelvin (K)

4.2.1. Derived Units

4.2.1.1. Degrees Celsius (C)

4.2.1.2. Heat Capacity (J/K)

4.2.1.3. Specific Heat Capacity (J/kg.K)

4.2.1.4. Thermal Conductivity (W/m.K)

5. Time

5.1. Definition

5.1.1. Time is the progression of events from the past to the present into the future.

5.2. seconds (s)

5.2.1. derived units

5.2.1.1. velocity (v)

5.2.1.2. coulomb (C)

5.2.1.3. hertz (Hz)

6. Luminous Intensity

6.1. candela (cd)

6.1.1. Derived units

6.1.1.1. Lux (measure of illumination of a surface)

6.1.1.2. Lumen (SI unit for luminous flux)

6.1.1.3. candela per square metre (SI unit for luminance)

6.1.1.4. lumen second (SI unit for luminous energy)

6.1.1.5. lux second (SI unit for luminous exposure)

6.1.1.6. lumen per watt (SI unit for luminous eficacy)

6.2. Definition

6.2.1. Luminous Intensity is how much light that a point source radiates in a given direction.