Curriculum
Course: AS Physics 9702
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Curriculum

AS Physics 9702

1. Physical quantities and kinematics

0/41 Dr Dabour Hub Science Diagram and Course Material

2. Dynamics, forces and pressure

0/46 Dr Dabour Hub Science Diagram and Course Material

3. Work, energy, power and deformation

0/31 Dr Dabour Hub Science Diagram and Course Material

4. Waves and superposition

0/39 Dr Dabour Hub Science Diagram and Course Material

5. Electricity and D.C. circuits

0/49 Dr Dabour Hub Science Diagram and Course Material

7. Circular motion and gravitational fields (A Level)

0/25 Dr Dabour Hub Science Diagram and Course Material

8. Thermal physics (A Level)

0/37 Dr Dabour Hub Science Diagram and Course Material

10. Electric fields and capacitance (A Level)

0/36 Dr Dabour Hub Science Diagram and Course Material

11. Magnetic fields and alternating currents (A Level)

0/46 Dr Dabour Hub Science Diagram and Course Material

12. Quantum and nuclear physics (A Level)

0/44 Dr Dabour Hub Science Diagram and Course Material

13. Medical physics and astronomy (A Level)

0/42 Dr Dabour Hub Science Diagram and Course Material
Quiz

11.2.4 The Quark Model of Beta Decay – Check yourself

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1.
In β− decay, a…
down quark changes to an up quark
up quark changes to a down quark
proton changes to a neutron
strange quark disappears
2.
The particles emitted in β− decay are…
e− and νe
e+ and νe
e+ and ν̄e
e− and ν̄e
3.
The weak interaction is unique because it can…
change quark flavour
act on neutrinos
attract protons
be seen with a Geiger counter
4.
In β+ decay of a nucleus, the proton number…
increases by 1
stays the same
decreases by 1
decreases by 2
5.
Why can a free neutron decay but a free proton cannot?
the proton has no charge
protons are leptons
neutrons are fundamental
the neutron has more mass than the products
6.
Lepton number in β+ decay is conserved because…
only quarks are involved
leptons are not emitted
the positron has zero lepton number
a positron and a neutrino have opposite lepton numbers
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