What is the SI base unit for measuring mass?

What is the SI base unit for measuring mass?

• A. Meter (m)
• B. Second (s)
• C. Kilogram (kg)
• D. Kelvin (K)

Answer: (C)

Mass is measured using the kilogram in the SI system. The kilogram is the base unit for mass, while the other options correspond to different quantities: meter for length, second for time, and kelvin for temperature. A kilogram is the standard mass unit, with grams being a smaller commonly used subunit (1 kg = 1000 g). The kilogram is defined now by fixing the numerical value of Planck's constant, linking mass to fundamental constants rather than a physical object. Keep in mind that weight is a force measured in newtons and depends on gravity, while mass stays the same.

Mass is measured using the kilogram in the SI system. The kilogram is the base unit for mass, while the other options correspond to different quantities: meter for length, second for time, and kelvin for temperature. A kilogram is the standard mass unit, with grams being a smaller commonly used subunit (1 kg = 1000 g). The kilogram is defined now by fixing the numerical value of Planck's constant, linking mass to fundamental constants rather than a physical object. Keep in mind that weight is a force measured in newtons and depends on gravity, while mass stays the same.