Moments and pressure GapFill

If a force does not act through the centre of an object, it may cause a rotation in the object. The turning effect of a force is called a moment, which is given by the equation moment =  d/FFdF/dF/d²Fd²F²d, where F is the force exerted and d is the distance between the point where the force acts and the pivot, which is the centre of the rotation.
If the clockwise and anticlockwise moments on an object are equal, the object  rotates clockwisemoves upwardsconstantly changes directionis balancedmoves forwardsrotates anticlockwise.
A  line of actionmomentgearspringleverpivot is a device used to transmit a rotational force. Often this is used to amplify the effect of a force, decreasing the force that needs to be exerted.
A  momentpivotspringgearline of actionlever is a rotating machine part, which changes the direction of a rotational force.

A fluid is a substance that can flow and fill a container, and can be a liquid or a gas. A fluid exerts a pressure on the container it is contained in, or on any object in the fluid; pressure is given by the equation P =  area ÷ forceforce × areaforce ÷ area²force² ÷ areaforce ÷ areaforce² × area, and is measured in  ohmsnewtonspascalswattsjoulescoulombs.
An object submerged in a fluid will experience a different pressure on its bottom and top surfaces; the resultant force is called  upthrusttensionterminalfrictiondraglift.