Chemical Measurements (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
8 questions from this quiz
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Practise the questions
8 questions from this quiz
What is always present in chemistry measurements?
What is always present in chemistry measurements?
Uncertainty
What affects how accurate a measurement is?
What affects how accurate a measurement is?
The precision of the instrument used
What do more precise instruments have?
What do more precise instruments have?
Smaller units of measurement
How can scientists reduce uncertainty?
How can scientists reduce uncertainty?
Take multiple measurements
What do scientists calculate from multiple measurements?
What do scientists calculate from multiple measurements?
The average
Why does averaging help get accurate results?
Why does averaging help get accurate results?
It balances out small errors
If a cylinder measures 100 cm³, what might it actually be?
If a cylinder measures 100 cm³, what might it actually be?
99.5 cm³ or 100.5 cm³
What should you do with multiple volume measurements?
What should you do with multiple volume measurements?
Average them for accuracy