Physics 0625 · IGCSE · Pressure

Pressure — practice question

Fig. 4.1 depicts a student on soft sand. The student does not sink into the sand. The student's mass is 40 kg.

(a)[2]

Calculate the force exerted by her body on the sand.

(b)[3]

Calculate the pressure exerted by the student on the sand when standing as shown in Fig. 4.1.

(c)[2]

Explain why this occurs. No calculation is needed.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “W = m \times g” …