Chemical Measurements (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What is always present in chemical measurements?
What is always present in chemical measurements?
Uncertainty
What does uncertainty mean in chemical measurements?
What does uncertainty mean in chemical measurements?
The measurement might not be exactly right
What affects how accurate a measurement is?
What affects how accurate a measurement is?
The precision of the instrument
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 should be calculated from multiple measurements?
What should be calculated from multiple measurements?
The average
What does averaging multiple measurements help to do?
What does averaging multiple measurements help to do?
Balance out small errors
If you measure cm³ with a cylinder, what might the actual volume be?
If you measure cm³ with a cylinder, what might the actual volume be?
cm³ or cm³
What determines if a measured volume is cm³ or cm³?
What determines if a measured volume is cm³ or cm³?
The precision of the cylinder
What can you do to get a more accurate volume measurement?
What can you do to get a more accurate volume measurement?
Take multiple measurements and average