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Difficulty: EasyFundamental and Derived Units

Match each physical quantity to its correct SI unit.

  • Electric currentAmpere (A)
  • ForceNewton (N)
  • Thermodynamic temperatureKelvin (K)
  • EnergyJoule (J)

Answer

Electric current matches Ampere (A); Force matches Newton (N); Thermodynamic temperature matches Kelvin (K); Energy matches Joule (J).
Electric current and thermodynamic temperature are fundamental quantities measured in amperes and kelvins respectively. Force and energy are derived quantities whose units (newton and joule) are combinations of base SI units.

Step-by-Step Solution

1
Identify fundamental physical quantities and their base SI units.
Electric current is measured in amperes (A), and thermodynamic temperature is measured in kelvins (K). Both are fundamental SI units.
Fundamental units are basic units that are defined independently of other quantities.
2
Identify derived physical quantities and their derived SI units.
Force is measured in newtons (N), and energy is measured in joules (J). Both are derived SI units.
Derived units are obtained by combining fundamental SI base units according to physical equations.

Key Concept

Classification of fundamental and derived SI units
Estimated Time:45s
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Topics

Fundamental and Derived Units

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