Curriculum
Course: IB Physics HL
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Curriculum

IB Physics HL

Theme A — Space, Time and Motion

0/125 Dr Dabour Hub Science Diagram and Course Material

Theme B — The Particulate Nature of Matter

0/105 Dr Dabour Hub Science Diagram and Course Material

Theme C — Wave Behaviour

0/73 Dr Dabour Hub Science Diagram and Course Material

Theme D — Fields

0/77 Dr Dabour Hub Science Diagram and Course Material

Theme E — Nuclear and Quantum Physics

0/89 Dr Dabour Hub Science Diagram and Course Material

Tools and Inquiry — IB Physics skills

0/43 Dr Dabour Hub Science Diagram and Course Material
Quiz

D.1.12 Effects of Drag on Orbital Motion – Check yourself

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1.
Drag on a low satellite causes its orbital radius to
increase
stay constant
decrease
oscillate
2.
As a satellite spirals inwards under drag, its speed
increases
decreases
stays constant
becomes zero
3.
The total energy of a satellite in circular orbit changes under drag by becoming
less negative
more negative
positive
unchanged
4.
When drag lowers an orbit, the kinetic energy of the satellite
decreases
stays the same
increases
is zero
5.
The decrease in potential energy compared with the increase in kinetic energy during decay is
equal
half as large
ten times larger
twice as large
6.
The orbital period of a satellite subject to drag
increases
decreases
stays constant
doubles
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