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Questions and Answers
Which physical quantities are classified as fundamental quantities?
Which physical quantities are classified as fundamental quantities?
- Derived quantities
- Temperature, electric current, luminous intensity
- Angle, solid angle
- Length, mass, time (correct)
What is the definition of a second?
What is the definition of a second?
- The time taken for light to travel one meter in a vacuum
- The time taken for the Earth to complete one full rotation on its axis
- The time taken by light of a specified wavelength emitted by a caesium-133 atom to execute 9192631770 vibrations (correct)
- The time taken for the Moon to orbit the Earth once
What is the basic unit for electric current?
What is the basic unit for electric current?
- Volt (V)
- Watt (W)
- Ampere (A) (correct)
- Ohm (Ω)
What is the definition of a kilogram?
What is the definition of a kilogram?
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What is the fraction 1/273.6 of the thermodynamic temperature of the triple point of water?
What is the fraction 1/273.6 of the thermodynamic temperature of the triple point of water?
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