Units (Forces and Motion)
2 marks · EasyA car has a mass of 1200 kg. It speeds up from rest. For each quantity below, give the correct SI unit and symbol.
(a)[1 mark]
Mass
(b)[1 mark]
Speed
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(a) kilogram (kg)
(b) metre per second (m/s)
Common mistakes: weight for mass; force for speed
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Correct SI unit and symbol for mass: kilogram (kg).
B2 (b) · 1 mark · Correct SI unit and symbol for speed: metre per second (m/s).
Worked solution
a) Mass: kilogram (kg) b) Speed: metre per second (m/s)