A mind map abour measurement. Measurement is the quantification of attributes of an object or event, which can be used to compare with other objects or events. The scope and application of measurement are dependent on the context and discipline. In natural sciences and engineering, measurements do not apply to nominal properties of objects or events, which is consistent with the guidelines of the International vocabulary of metrology published by the International Bureau of Weights and Measures. However, in other fields such as statistics as well as the social and behavioural sciences, measurements can have multiple levels, which would include nominal, ordinal, interval and ratio scales.

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Measurement

Physical quantity

Base quantity

Length

Mass

Time

Thermodynamic temperature

Electric current

Luminous intensity

Amount of substance

physical quantities that cannot be derived from other physical quantities

Derived quantity

Area

Volume

Density

Velocity

Acceleration

Force

Momentum

Pressure

Work done

Charge

physical quantities that are derived from the combinations of base quantities.

Scalar quantity

magnitude only

Distance, Area, Length, Work done, Temperature

Time, Volume, Speed, Energy, Density

Vector quantity

both magnitude and direction

Displacement

Velocity

Force

Acceleration

Momentum

Scientific investigation

Shape of Graph

y directly proportional to x

y increases linearly with x

y increases with x

y decreases linearly with x

y decreases with x

y is inversely proportional to x

Analysing graphs

Relationship between two physical quantities

Gradient of graph

Area under the graph

Interpolation of graph

Extrapolation of graph

Measurement

2

137

magnitude only

both magnitude and direction

Measurement

Physical quantity

Scientific investigation

Base quantity

Length

Mass

Time

Thermodynamic temperature

Electric current

Luminous intensity

Amount of substance

Derived quantity

Area

Volume

Density

Velocity

Acceleration

Force

Momentum

Pressure

Work done

Charge

Scalar quantity

Distance, Area, Length, Work done, Temperature

Time, Volume, Speed, Energy, Density

Vector quantity

Displacement

Velocity

Force

Acceleration

Momentum

Shape of Graph

y increases linearly with x

y increases with x

y decreases linearly with x

y decreases with x

y is inversely proportional to x

Analysing graphs

Relationship between two physical quantities

Gradient of graph

Area under the graph

Interpolation of graph

Extrapolation of graph

physical quantities that cannot be derived from other physical quantities

physical quantities that are derived from the combinations of base quantities.

y directly proportional to x

Measurement

Physical quantity

Base quantity

Length

Mass

Time

Thermodynamic temperature

Electric current

Luminous intensity

Amount of substance

physical quantities that cannot be derived from other physical quantities

Derived quantity

Area

Volume

Density

Velocity

Acceleration

Force

Momentum

Pressure

Work done

Charge

physical quantities that are derived from the combinations of base quantities.

Scalar quantity

magnitude only

Distance, Area, Length, Work done, Temperature

Time, Volume, Speed, Energy, Density

Vector quantity

both magnitude and direction

Displacement

Velocity

Force

Acceleration

Momentum

Scientific investigation

Shape of Graph

y directly proportional to x

y increases linearly with x

y increases with x

y decreases linearly with x

y decreases with x

y is inversely proportional to x

Analysing graphs

Relationship between two physical quantities

Gradient of graph

Area under the graph

Interpolation of graph

Extrapolation of graph

Mind Map

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