(20 1 1? Shenzhen) is a homogeneous rectangular object with a mass of 120g, and its length, width and height are 5cm, 4cm and 3cm respectively. Under the horizontal tension of 10N,

A, m= 120g, V=5cm×4cm×3cm=60cm3, then ρ = MV = 120g60cm3 = 2g/cm3 > ρ water, so this option is correct, but it does not meet the meaning of the question;

B, because the density of the object is greater than the density of water, so when the object is immersed in water, the object will sink, and its buoyancy is less than gravity, so this option is correct, but it does not meet the meaning of the question;

C, in this process, the work done by tension is w = fs =10n×1m =10j, so this option is correct, but it does not meet the meaning of the question;

D, the object gravity g = mg = 0.12kg×10n/kg =1.2n, the maximum area s = 5cm× 4cm = 20cm2 = 2x10-3m2,

p=FS= 1.2N2× 10？ 3 square meters = 600 pa. So this option is wrong, but it fits the question.

So choose D.