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WorksheetsParticle and nuclear Physics (AS Physics)
Total questions: 10
Worksheet time: 10mins
Question 1
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B
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D
Question 2
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B
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D
Question 3
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261
160
154
A thin gold foil is bombarded with α-particles as shown.
The results of this experiment provide information about the
binding energy of a gold nucleus.
energy levels of electrons in gold atoms.
size of a gold nucleus.
structure of a gold nucleus.
Isotopes of a given element all have the same
charge / mass ratio.
neutron number.
nucleon number.
proton number.
Which statement about the alpha-particle scattering experiment provides evidence for the existence of the nucleus?
A tiny proportion of the alpha-particles are deflected through large angles.
Slower alpha-particles are deflected through larger angles.
The kinetic energies of the deflected alpha-particles are unchanged.
The number of alpha-particles deflected depends on the thickness of the foil.
Which statement describes β- decay in terms of a simple quark model?
A down quark changes to an up quark and emits an electron and an electron antineutrino.
A down quark changes to an up quark and emits a positron and an electron neutrino.
An up quark changes to a down quark and emits an electron and an electron antineutrino.
An up quark changes to a down quark and emits a positron and an electron neutrino.
Which row gives the correct classification of protons, electrons, and neutrinos?
A
B
C
D
Which equation represents β+ decay?
neutron → proton + positron + antineutrino
neutron → proton + positron + neutrino
proton → neutron + positron + antineutrino
proton → neutron + positron + neutrino
What is a proton?
hadron
a particle consisting of two down quarks and one up quark
a positive fundamental particle
a positive lepton
