1) What is force per unit area called ? a) Pressure b) Friction c) Atmospheric Pressure 2) The SI unit of Pressure is ? a) Pascal b) Force 3) A liquid exerts pressure in __________ Direction/s. a) All Directions b) One Direction c) Two Directions 4) A liquid exerts pressure in __________ All Directions ? a) True b) False 5) Dams are made with thicker walls at the _________ to withstand higher pressures? a) Bottom b) TOP 6) Skis have a large area to ________ pressure on the snow a) increase b) decrease 7) A force of 20N is spread over an area of 4cm^2. What is the pressure? a) 5 N/cm^2 b) 80 N/cm^2 c) 0.5 N/cm^2 d) 50 N/cm^2 8) A small force over a big area produces small pressure. a) TRUE b) FALSE 9) Reducing the area can be useful if you need a small pressure. a) TRUE b) FALSE 10) It is the force that keep things afloat. a) tension b) pressure c) upthrust d) water resistance 11) The particles in a liquid are very close so liquids can be compressed. a) TRUE b) FALSE 12) Haggen applied a force of 100 N in his toy which has 2 m^2 area. Calculate the pressure. a) 50 N/m^2 b) 5.0 N/m^2 c) 50 N/cm^2 d) 500 N/m^2

Physics 8 Pressure

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