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

24.3.1 Radioactive Tracers – Check yourself

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1.
Why is fluorine-18 attached to a glucose-like molecule in PET?
Because it is cheap
So that active tissues take it up in large amounts
Because it emits alpha particles
So that it will be excreted at once
2.
Fluorine-18 decays by
alpha emission
β− emission
gamma emission only
β+ emission
3.
A tracer has half-life 2.0 hours. What fraction of its activity is left after 6.0 hours?
1/8
1/4
1/6
1/2
4.
A short half-life tracer is preferred because
it is easier to detect at long times
it emits more energy
it decays quickly, reducing patient dose
it is cheaper to make
5.
A PET scan of a tumour shows a bright spot because the tumour
emits ultrasound
blocks gamma-rays
has high density
has higher glucose uptake
6.
Which pair describes the nuclide change in 18F decay?
Z falls by 1, A unchanged
Z rises by 1, A unchanged
Z falls by 2, A falls by 4
Z unchanged, A falls by 1
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