Units (Forces and Motion)
2 marks · NormalA spinning playground roundabout exerts a moment (torque) on a child of 12 N m for 5 seconds.
(a)[1 mark]
State the SI unit for moment (torque).
(b)[1 mark]
Write the symbol for this unit.
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(a) newton metre
(b) Nm
Common mistakes: Confusing the unit for moment with newton, joule, or other units
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Marking points
B1 (a) · 1 mark · States newton metre (Nm) as the unit for moment.
B1 (b) · 1 mark · Writes the correct symbol Nm.
Worked solution
a) The unit for moment is newton metre. b) The symbol is Nm.