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

25.3.1 Emission Spectra – Check yourself

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1.
What produces a line emission spectrum?
Electrons in an excited low-pressure gas falling between energy levels
A hot, dense solid giving out heat
White light passing through a cool gas
Electrons being removed from atoms completely
2.
An electron falls from E2 = −0.85 eV to E1 = −3.40 eV. The photon energy is:
−2.55 eV
2.55 eV
4.25 eV
3.40 eV
3.
A photon of energy 3.0 × 10−19 J has wavelength:
6.6 × 10−9 m
1.5 × 10−6 m
6.6 × 10−7 m
9.0 × 10−28 m
4.
Dark lines in the spectrum of a star are caused by:
emission from cold gas
the star being a black body
reflection of sunlight by the star
absorption of photons by cooler gas in the star's atmosphere
5.
An atom has four energy levels. The maximum number of different emission lines is:
6
3
4
12
6.
Which transition emits the photon of the shortest wavelength?
The one with the smallest energy gap
The one with the largest energy gap
The one ending on the highest level
All transitions give the same wavelength
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