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Why is it necessary to write a unit with a measurement in an experiment?

Answer and explanation

Correct answer: To show the correct meaning and magnitude of the measured value

A unit gives physical meaning to a measured number. For example, writing only 5 does not tell whether it means 5 cm, 5 m, or 5 s. Thus, a unit makes the type and magnitude of a measurement clear. Changing a hypothesis is not the purpose of writing units. Exam tip: Record every observation with a number and an appropriate SI unit.

Related tags

Measurement UnitsExperimental DataSi UnitsScientific ObservationScience SkillsHypothesis And ExperimentationExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary Science

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