- Mark Scheme /
Question Answer Marks AO Element Notes Guidance
1(a) 755 (1) 2
mm Hg (1)
1(b) vacuum 1
2(a) (pressure at hole 2 is) less (than 1
that at hole 3) ora
2(b) water from top hole not travelling 1
further than from middle hole
3 (P =) F ÷ A in any form (1) 3
(P =) 60 ÷ 80 (1)
2
(P =) 0.75 (N / cm ) (1)
4 any three from: 3
pressure = force ÷ area
weight or force distributed /
spread owtte
(over) larger area
(so) lower pressure (on the
ground)
(vehicle) doesn’t sink into the
mud owtte
Question Answer Marks AO Element Notes Guidance
1(a) 755 (1) 2
mm Hg (1)
1(b) vacuum 1
2(a) (pressure at hole 2 is) less (than 1
that at hole 3) ora
2(b) water from top hole not travelling 1
further than from middle hole
3 (P =) F ÷ A in any form (1) 3
(P =) 60 ÷ 80 (1)
2
(P =) 0.75 (N / cm ) (1)
4 any three from: 3
pressure = force ÷ area
weight or force distributed /
spread owtte
(over) larger area
(so) lower pressure (on the
ground)
(vehicle) doesn’t sink into the
mud owtte
