O-LevelPhysicsForces5054/11 · May/June 2010 · Q101 Mark

Five blocks have the same mass but different base areas. They all rest on a horizontal table. A graph is plotted to show the relationship between the pressure exerted on the table and the base area of the block. Which graph shows this relationship?

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Agraph with a straight line from the origin sloping upwards

Bgraph with a curve starting high and decreasing with a convex upward shape

Cgraph with a horizontal line then a vertical drop

Dgraph with a curve starting high and decreasing with a concave upward shape

✓ Correct answer

D: graph with a curve starting high and decreasing with a concave upward shape

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