Inquiry 2: Collecting and Processing Data in Physics (DP IB Physics) Flashcards

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  • What are precise measurements?

    Precise measurements have very little spread about the mean value, i.e. they are close to each other.

  • What are accurate measurements?

    Accurate measurements are close to the true value.

  • True or False?

    Zero errors affect the precision of measurements.

    False.

    Zero errors are a type of systematic error, so they affect the accuracy of measurements, not precision.

  • Define reliability.

    Reliability is a measure of the ability of an experimental procedure to produce the expected results when using the same method and equipment.

  • Define validity.

    Validity is a measure of the suitability of an experimental procedure to measure what it is intended to measure.