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Pressure Quicktest Question 1 Look at the pictures below. Tick the shoe that will exert the highest pressure on the floor and cross the one that will exert the least pressure. /1 Question 2 The unit for pressure is… a) Newton (N) b) Newton per metre (N/m) c) Newton per square metre (N/m2) /1 Question 3 Pressure can also be measured in ____________, which is the same as Newton per ______. /1 Question 4 Complete the table by calculating the missing values putting also the right units for pressure. Force (N) 100 35 45 50 Area (m2) 20 4 Pressure (_____) 280 17.5 3 20 /2 Question 5 Tick the wrong statement. Pressure in liquids… a) acts in all directions. b) is the same everywhere in the liquid. c) increases with depth. d) is transmitted throughout the liquid. /1 Question 6 Tick the right word. A hydraulic machine magnifies… a) the pressure b) the force c) the area /1 Question 7 In a hydraulic machine f is the force pushing the small piston of area a. What is the effect of the pressure exerted on the small piston? a) It is transferred to the large piston that gets pushed away. b) No effect at all. c) As the small piston goes down, the pressure increases and the large piston moves downwards to balance this pressure with its weight. /1 Question 8 Complete the table below. Input piston Force (N) 20 45 15 12 Pressure in 2 Area (m ) 4 3 5 2 system (N/m ) Output piston Force (N) Area (m2) 10 25 30 20 2 5 10 5 /2