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

E.1.1 Rutherford’s Gold Foil Experiment – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
Most alpha particles pass undeflected through the gold foil. This shows that
the atom is mostly empty space
the nucleus is negative
electrons are large
the foil is a conductor
2.
A very small number of alpha particles are scattered through more than 90°. This shows
an atom is solid
electrons repel alpha particles
alpha particles are negative
a small dense positive nucleus
3.
The experiment is performed in a vacuum because
gold reacts with air
alpha particles are absorbed by air
the source needs it
the nucleus is damaged by air
4.
The gold foil is very thin so that
it can be heated
it conducts electricity
electrons escape
each alpha particle is scattered by at most one nucleus
5.
The approximate ratio of the atomic radius to the nuclear radius is
105
102
1010
1
6.
Which particle mainly causes large-angle deflections of alpha particles?
An electron
The gold nucleus
A neutron in the beam
A proton in the source
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Part of Theme E — Nuclear and Quantum Physics — see every lesson and quiz in this unit.
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