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.2.18 Centripetal Acceleration – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
The centripetal acceleration of a body in uniform circular motion is directed
Along the velocity
Towards the centre
Away from the centre
Along the radius outwards
2.
A body moves at 6.0 m s⁻¹ in a circle of radius 3.0 m. Its acceleration is
2.0 m s⁻²
18 m s⁻²
12 m s⁻²
36 m s⁻²
3.
If the radius is doubled while the speed is the same, the acceleration
Doubles
Quadruples
Halves
Is unchanged
4.
A wheel of radius 0.40 m rotates at ω = 5.0 rad s⁻¹. The acceleration of a point on its rim is
10 m s⁻²
2.0 m s⁻²
25 m s⁻²
100 m s⁻²
5.
In uniform circular motion the acceleration
Changes the speed
Is zero
Is tangent to the path
Changes the direction of velocity only
6.
An object moves with period T on a circle of radius r. Its acceleration is
2πr/T
4π²r/T²
2π/T
π²r/T
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Part of Theme A — Space, Time and Motion — see every lesson and quiz in this unit.
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