Physics 0625 · IGCSE · Forces

Forces — practice question

Fig. 3.1 shows a large box fitted with a heavy lid.

(a)[3]

Calculate the mass of the box.

(b(i))[4]

Calculate the moment of his force about the pivot. State the unit.

(b(ii))[1]

The moment in (b)(i) is not enough to lift the lid. Describe how the man can increase the moment, using the same force.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “w = m \times g (or any accepted equivalent)” …