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GCSE Physics · key term
The size or numerical value of a physical quantity, including its unit but not its direction.
Used by AQA, Edexcel and OCR
Specification 4.5.1.1 · Paper 2
The size or amount of a quantity, expressed using a numerical value and an appropriate unit.
Revise: Scalar and vector quantitiesSome quantities are completely described by this magnitude, whereas others also need a direction.
Specification 2.1, 2.2, 2.3, 2.4, 2.13, 9.2, 9.3, 9.4 · Paper 1, Paper 2
The numerical size of a physical quantity, normally stated with an appropriate unit.
Revise: Scalar QuantitiesThe size of a quantity is called its magnitude.
The size of a quantity, written as a numerical value with an appropriate unit.
The size of a physical quantity, including its numerical value and unit.
The size of a quantity without reference to its direction or sign.
The size of a physical quantity, expressed as a numerical value with an appropriate unit.
The size of a vector quantity, such as the size of a force measured in newtons.
The size of a quantity; on a force diagram it may be represented by the length of an arrow.
Specification P2.1d, P2.2c, P2.2e, P8.1b · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
The size of a quantity, without its direction.
Revise: Vector and scalar distinctionVectors may be represented by arrows: the direction of the arrow shows the vector's direction, while its length can represent the magnitude.
The size of a quantity; for a force, its magnitude is measured in newtons.
The size of a vector quantity, such as the number of newtons in a force.
The size of a quantity without its direction or sign.
Classify a quantity by asking what is needed for a complete description: magnitude only means scalar; magnitude and direction means vector.
For a vector arrow, state both features: its length represents magnitude and its arrowhead shows direction.
For a definition question, state both parts: a scalar has magnitude (size) and no specific direction.
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