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Across 3. an upward force acting on an obejct in a fluid. 5. a substance or mixture that has not shape of its own. 6. a device that uses a pressurized fluid acting on pistons of different sizes to increase force. 8. the ability of a fluid to exert an upward force on an object.

Down 1. the equivalence of the buoyant force on an object and the weight of the fluid displaced by the object. 2. SI unit of pressure, equal to 1 N/m squared. 4. the result of a force distributed over an area. 7. an upward force due to a pressure differece between the top and bottom of a wing.