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

A.4.1 Torque and Couples – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
A force of 20 N acts perpendicular to a 0.50 m wrench. The torque is
10 N m
40 N m
2.5 N m
100 N m
2.
A force acts along the line joining its point of application to the pivot. Its torque is
maximum
Fr/2
zero
Fr cos 90°
3.
A couple consists of two 8.0 N forces separated by 0.25 m. The torque is
2.0 N m
16 N m
32 N m
0 N m
4.
Which statement about a couple is correct?
It has a non-zero resultant force
Its torque depends on the pivot position
It produces rotation without a net force
It has no turning effect
5.
A force of 30 N acts at 30° to a 0.80 m rod at its end. The torque about the other end is
24 N m
21 N m
12 N m
0 N m
6.
The SI base units of torque are
kg m s−2
kg m2 s−2
kg m2 s−1
kg m s−1
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Part of Theme A — Space, Time and Motion — see every lesson and quiz in this unit.
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