Which among the following is the fundamental quantity?
(1) Volume
(2) Time
(3) Velocity
(4) Force
Answer: (2). The fundamental qualities of Physics are the seven basic quantities that can be used to express all other physical quantities. These are as follows: Length: Metre, Heat: Kelvin, Time: second, Luminous Intensity: Candela, Mass: Kilogram, Electric Current: Ampere, and Amount of substance: Moles.