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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Physical quantities and measurement techniques

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Attempt questionPhysical quantities and measurement techniques revisionRevise the key idea

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Physical quantities and measurement techniques

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Paper 3Theory (Core)4 marks

In a laboratory setting, precise time measurement is crucial.

Description

Importance of Timers

Timers are used in laboratories to measure time intervals accurately, which is essential for conducting experiments and obtaining reliable results.

  1. a

    Discuss the role of timers in scientific experiments.

    Aim for approximately 4 distinct marking points.

    [4]

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Paper 3 structured question: Physical quantities and measurement techniques

Paper 3Theory (Core)2 marks

Description

Methods of Time Measurement

Different devices can be used to measure time intervals, including analog clocks, digital clocks, and timers. Each device has its own advantages and applications in scientific contexts.

  1. a

    Explain the differences between analog clocks and digital clocks.

    Aim for approximately 2 distinct marking points.

    [2]