Curriculum
Course: IB Physics SL
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Curriculum

IB Physics SL

Theme A — Space, Time and Motion

0/80 Dr Dabour Hub Science Diagram and Course Material

Theme B — The Particulate Nature of Matter

0/87 Dr Dabour Hub Science Diagram and Course Material

Theme C — Wave Behaviour

0/60 Dr Dabour Hub Science Diagram and Course Material

Theme D — Fields

0/41 Dr Dabour Hub Science Diagram and Course Material

Theme E — Nuclear and Quantum Physics

0/59 Dr Dabour Hub Science Diagram and Course Material

Tools and Inquiry — IB Physics skills

0/54 Dr Dabour Hub Science Diagram and Course Material
Quiz

B.2.3 Greenhouse Gases – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
Which pair contains only greenhouse gases?
N2 and O2
O2 and CH4
CO2 and CH4
N2 and CO2
2.
Greenhouse gas molecules absorb infrared radiation mainly because
the photon frequency matches a natural vibration frequency of the molecule
infrared photons have enough energy to ionise the molecules
the gases are good reflectors
the molecules are very massive
3.
The frequency of infrared radiation of wavelength 20 μm is
1.5 × 107 Hz
6.7 × 10−14 Hz
6.0 × 103 Hz
1.5 × 1013 Hz
4.
Which is a natural source of methane?
Burning coal
Wetlands
Cement production
Photosynthesis
5.
Compared with visible-light photons, infrared photons absorbed by CO2
have lower energy
have higher energy
have the same energy
have no energy
6.
A layer absorbs 200 W m−2 of upward infrared and re-emits equally up and down. The downward intensity returned is
50 W m−2
400 W m−2
200 W m−2
100 W m−2
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Part of Theme B — The Particulate Nature of Matter — see every lesson and quiz in this unit.
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