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12 Terms
Pressure definition
The force exerted per m2 and that the unit of pressure is the pascal
Pressure equation
Pressure = force-area
Principle of moments
When a body is in equilibrium, the sum of the clockwise moments about any point equals the sum of the anticlockwise moment about the same point
Principle of moments equation
F1 x d1 = F1 x d1
Moment of a force definition
The turning effect of the force
The size of the turning effect or moment depends on
The size of the force & the perpendicular distance of the force from the pivot
Formula for the moment of a force
Moment = force x perpendicular distance from the pivot
Centre of gravity definition
The point where the weight of the appears to act from
Volume definition
The amount of space an object or substance occupies
Volume equation
Volume = length x breadth x height
Density definition
The mass per unit volume of a material
Density equation
Density = mass-volume
