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

A.1.7 Fluid Resistance – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
Drag acts
In the direction of motion
Perpendicular to the motion
Only when the object is at rest
Opposite to the motion relative to the fluid
2.
Which change reduces the drag on a moving object?
Making its shape more streamlined
Increasing its speed
Increasing its cross-sectional area
Moving it through a denser fluid
3.
For an object in air the drag is approximately proportional to v². If the speed doubles, the drag becomes
2 times
4 times
8 times
1/2
4.
A 2.0 kg object falls with drag 8.0 N upwards. Its acceleration is closest to
9.8 m s⁻² down
4.0 m s⁻² down
5.8 m s⁻² down
0
5.
The air resistance on a car at constant speed is 500 N at 20 m s⁻¹. The power needed to overcome it is
10 W
25 W
10 kW
1.0 kW
6.
Drag is classed as a
Contact force
Non-contact force
Gravitational force
Nuclear force
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Part of Theme A — Space, Time and Motion — see every lesson and quiz in this unit.
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