Physics 0625 · IGCSE · Density

Density — practice question

Fig. 3.1 depicts a warning marker bobbing on the lake’s surface. A metal chain connects the marker to a heavy object resting on the lake bed.
(a)[2]

Calculate the resultant force acting on the marker.

(b)[5]

A damaged loop has been taken from the chain. Describe a method for determining the density of the metal from which the loops are made.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Use force subtraction to obtain the resultant OR 30 N” …

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