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CAIE IGCSE Physics 1.8.2 Pressure varies with force & area in

Practise explaining how force and contact area change pressure in everyday situations such as pins, ice surfaces and supports.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • explain why a larger contact area lowers pressure when the same weight is spread out
  • compare sharp and broad surfaces by linking force, area and pressure at the contact point

1.8.2—Pressure varies with force and area in question 1

[Maximum number: 3]

Fig. 3.1 shows a person moving across an ice-covered pond to reach a ball on the ice.

Fig. 3.1

Fig. 3.1

Explain why this way of moving across the ice is safer than walking. Use your understanding of pressure in your answer.

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