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

25.1.1 Luminosity and Radiant Flux – Check yourself

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1.
The SI unit of radiant flux is
W
W m−2
J
W K−4
2.
The distance to a star is doubled. The radiant flux received becomes
half
one eighth
double
one quarter
3.
A star's surface temperature doubles with the same radius. Its luminosity is multiplied by
16
4
8
2
4.
A star of luminosity 4.0 × 1027 W is 5.0 × 1016 m away. F is about
1.6 × 10−6 W m−2
6.4 × 10−8 W m−2
1.3 × 10−7 W m−2
4.0 × 10−9 W m−2
5.
A graph of F against 1/d2 for a star is a straight line through the origin. The gradient equals
L
σ
4πL
L / 4π
6.
A red giant is much more luminous than a white dwarf of higher temperature because
it has a much larger surface area
it is hotter
it is nearer
it is made of different elements
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