chapter 13 vocabulary

pressure

the result of a force distributed over an area

pascal

the SI unit of pressure

fluid

a substance that assumes the shape of its container

hydraulic system

a device that uses pressurized fluid acting on pistons of different sizes to change a force

lift

upward force on an object

buoyancy

The ability of a fluid to exert an upward force on an object placed in it

buoyant force

upward force exerted on an object immersed in a fluid

Archimedes principle

the buoyant force on an object is equal to the weight of the fluid displaced by the object

pressure

the result of a force distributed over an area

pascal

the SI unit of pressure

fluid

a substance that assumes the shape of its container

hydraulic system

a device that uses pressurized fluid acting on pistons of different sizes to change a force

lift

upward force on an object

buoyancy

The ability of a fluid to exert an upward force on an object placed in it

buoyant force

upward force exerted on an object immersed in a fluid

Archimedes principle

the buoyant force on an object is equal to the weight of the fluid displaced by the object