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KS3 Key skills - variables (RGSHW)

Last updated 5 months ago
4 questions
Note from the author:
Quick formative on identifying variables
3
The percentage of fibre in the concrete is the ________________ variable
The height to crack the concrete is the ______________ variable.
The mass of the ball is a ____________ variable.
The thickness of the slab is a ____________ variable.
Other Answer Choices:
control
independent
dependent
2

The best conclusion that can be made from the results so far is as the percentage of fibre increases the height to crack the concrete ______________.
(Note we can say that the height to crack the concrete is proportional to the percentage of fibre in the concrete as the line of best fit is a straight line).
Other Answer Choices:
decreases
increases
4
The number of carbon atoms in one molecule of the alkane is the ________________ variable.
The boiling point is the ______________ variable.
The fact that all of the molecules are alkanes is a ____________ variable
The best conclusion that can be made from the results so far is as the number of carbon atoms in one molecule of the alkane increases the boiling point ______________.
(Note the data does not show a proportional relationship as the trend is not a straight line)
Other Answer Choices:
control
dependent
increases
independent
1
The independent variable is the ___________________
The dependent variable is the ____________________
The control variable is the _________________
Other Answer Choices:
colour produced
voltage used
Noble gas used