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Multiple Choice
In the International System of Units (SI), what is the base unit for length?
A
kilometer ()
B
angstrom ()
C
centimeter ()
D
meter ()
Verified step by step guidance
1
Understand that the International System of Units (SI) defines a set of base units for fundamental physical quantities.
Recall that length is one of the fundamental physical quantities measured in SI units.
Identify the SI base unit for length, which is the meter, symbolized as \(m\).
Recognize that other units like kilometer (\(km\)), centimeter (\(cm\)), and angstrom (\(\mathring{A}\)) are derived or non-SI units related to length but are not the SI base unit.
Conclude that the correct SI base unit for length is the meter (\(m\)).