Energy and work
3 marks · NormalA builder lifts a bucket of cement with a force of 180 N to the top of some scaffolding 3.0 m above the ground.
(a)[3 marks]
Calculate the work done by the builder on the bucket.
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540 J (±0)
Common mistakes: Multiplying by wrong distance or force.; Not including unit.
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Marking points
M1 (a) · 1 mark · Correct substitution into W=F×d
A1 (a) · 1 mark · Correct evaluation (540)
B1 (a) · 1 mark · Correct unit (J)
Worked solution
Work done = force × distance