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Fiducial marker — OCR GCSE Combined Science B Definition

Home
Combined Science
Key terms
Fiducial marker

GCSE Combined Science · key term

Fiducial marker

Definition

A pointer attached to a moving object to make its position easier to read against a scale.

Used by OCR

How each exam board covers it

OCR GCSE Combined Science B · J260

Specification P2 · Biology, Chemistry, Physics, Combined Science

Attach a small pointer, or fiducial marker, to the lower end of the spring so that its position can be read clearly against the ruler. Keep the ruler fixed throughout the investigation.
Revise: Investigating Forces

OCR Combined Science B past papers

Related key terms

Extension
Hooke’s law
Limit of proportionality
Mass
Parallax error

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