What are the SI base units for the moment of a force?
A.
\(\mathrm{kgm}^{-1} \mathrm{~s}^{2}\)
B.
\(\mathrm{kg} \mathrm{s}^{-2}\)
C.
\(\mathrm{kgms}^{-2}\)
D.
\(\mathrm{kgm}^{2} \mathrm{~s}^{-2}\)
Exam No:9702_w24_qp_11 Year:2024 Question No:1
Answer:
D
Knowledge points:
1.2.1 recall the following SI base quantities and their units: mass (kg), length (m), time (s), current (A), temperature (K), amount of substance (mol)
1.2.2 express derived units as products or quotients of the SI base units and use the named units listed in this syllabus as appropriate
1.2.3 use SI base units to check the homogeneity of physical equations
1.2.4 use the following prefixes and their symbols to indicate decimal submultiples or multiples of both base and derived units: pico (p), nano (n), micro (μ), milli (m), centi (c), deci (d), kilo (k), mega (M), giga (G), tera (T)
1.2.5 understand and use the conventions for labelling graph axes and table columns as set out in the ASE publication Signs, Symbols and Systematics (The ASE Companion to 16–19 Science, 2000)
Solution:
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