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CAIE A-Level Physics A2 12 Motion in a Circle Questions

Practise analysing circular motion with radians, angular and linear speed, centripetal acceleration and force, direction, units and assumptions.

Syllabus
2028–2030
Course
Physics 9702
Level
A2

Exam points

  • convert angular displacement and calculate angular speed, period and frequency in circular motion
  • relate angular and linear speed using v = rω
  • explain and calculate centripetal acceleration and force from radius, speed, angular speed and mass
  • identify the direction and physical source of centripetal force
  • check units and assumptions in uniform circular-motion problems

Covered syllabus points

12.1 Kinematics of uniform circular motion12.2 Centripetal acceleration

Question 1

[Maximum number: 3]

A second piece of modelling clay is attached to the disc in the position shown in Fig. 1.2.

Fig. 1.2

Fig. 1.2

The second piece of modelling clay has a larger mass than the first piece.
By placing one tick (✓)(\checkmark) in each row, complete Table 1.1 to show how the quantities indicated compare for the two pieces of modelling clay.

Table 1.1

Table 1.1

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