Curriculum
Course: IB Physics HL
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Curriculum

IB Physics HL

Theme A — Space, Time and Motion

0/125 Dr Dabour Hub Science Diagram and Course Material

Theme B — The Particulate Nature of Matter

0/105 Dr Dabour Hub Science Diagram and Course Material

Theme C — Wave Behaviour

0/73 Dr Dabour Hub Science Diagram and Course Material

Theme D — Fields

0/77 Dr Dabour Hub Science Diagram and Course Material

Theme E — Nuclear and Quantum Physics

0/89 Dr Dabour Hub Science Diagram and Course Material

Tools and Inquiry — IB Physics skills

0/43 Dr Dabour Hub Science Diagram and Course Material
Quiz

T.3.9 Determining Uncertainties from Graphs – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
The uncertainty in a gradient is found from:
(mmax − mmin)/2
mmax + mmin
mbest/2
the largest error bar
2.
A 2% uncertainty in a gradient m with g = 4π2/m gives g an uncertainty of:
4%
2%
1%
0.2%
3.
Maximum gradient 5.2, minimum 4.8, best 5.0. The gradient is:
5.0 ± 0.4
5.0 ± 5.2
5.0 ± 0.2
5.0 ± 0.02
4.
An intercept expected to be zero is 0.30 ± 0.05. This suggests:
perfect data
no error
random scatter only
a systematic error
5.
Error bars show:
the uncertainty in each plotted value
the line of best fit
the mean
the range of the axis
6.
If the best-fit line can pass through all error bars, the data are:
proof of the model
consistent with the model
inconsistent
invalid
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Part of Tools and Inquiry — IB Physics skills — see every lesson and quiz in this unit.
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