NEET · Physics · Moment of Inertia — Standard Shapes

Exercise and reference answers

Matching pairs

1. Left

   Thin ring about its central axis

   Right

   I = M R²

2. Left

   Solid disc about its central axis

   Right

   I = ½ M R²

3. Left

   Solid sphere about its diameter

   Right

   I = (2/5) M R²

4. Left

   Hollow sphere about its diameter

   Right

   I = (2/3) M R²

5. Left

   Solid cylinder about its long axis

   Right

   I = ½ M R²

6. Left

   Thin rod about its centre (length L)

   Right

   I = M L²/12

Instructions

Match each rigid body's axis to its moment of inertia.