Reading scales (AQA GCSE Maths): Flashcards
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Practise the cards
10 cards from this deck
Formula to calculate division value on a scale
Formula to calculate division value on a scale
Steps to find value of each scale division
Steps to find value of each scale division
Find two marked values, count divisions between them, divide range by number of divisions
Do all scale divisions represent round numbers?
Do all scale divisions represent round numbers?
No, many have decimal values or unusual increments
Division value: 5 divisions between 100g and 150g
Division value: 5 divisions between 100g and 150g
10g per division
Division value: 5 divisions between 3.9m and 4m
Division value: 5 divisions between 3.9m and 4m
0.02m or 2cm per division
Is estimation acceptable for readings between marks?
Is estimation acceptable for readings between marks?
Yes, reasonable estimation is acceptable
Method to estimate reading between two marked lines
Method to estimate reading between two marked lines
Find range, estimate fraction between marks, calculate value
First step in solving balance scale problems
First step in solving balance scale problems
Identify what you know from both scales
Key technique for balance scale problems
Key technique for balance scale problems
Use substitution after finding weight of one object
After solving balance scales, what should you do?
After solving balance scales, what should you do?
Check solution works for both scales