Pressure under a solid
2 marks · EasyGive two changes that would increase the pressure exerted by a person standing on the ground.
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Increase the person's weight (e.g., by carrying a heavy bag) or reduce the contact area (e.g., by standing on tiptoes).
Also accept: Increase weight or decrease the area in contact with the ground.
Common mistakes: Mentioning only weight or only area.; Mentioning unrelated changes like 'stand for longer'.
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Marking points
B1 · 1 mark · States increasing force/weight/mass as one method.
B2 · 1 mark · States reducing area of contact as another method.
Worked solution
The pressure is increased by (1) increasing the person's weight or (2) reducing the area in contact by, for example, standing on one foot or tiptoes.