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

A.5.8 Length Contraction – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
A moving rod is measured to be
shorter than its proper length along the motion
shorter in all directions
longer than its proper length
the same as its proper length
2.
Which formula is correct?
L = L₀ − γ
L = γL₀
L = L₀/γ
L = L₀γ2
3.
A 60 m craft moves at 0.80c. An Earth observer measures its length as
100 m
36 m
48 m
75 m
4.
The proper length of a metre stick is measured by
two observers moving at c
no one
an observer moving along it at 0.5c
an observer at rest relative to it
5.
A muon's journey through the atmosphere is explained in its frame by
time dilation
contraction of the atmosphere
an increase of its mass
a decrease of c
6.
A rod of proper length 2.0 m moves at 0.60c perpendicular to its length. Its length is
1.6 m
2.5 m
2.0 m
1.2 m
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Part of Theme A — Space, Time and Motion — see every lesson and quiz in this unit.
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