Rotation bingo

Exercise and reference answers

Clues and terms

1. Clue

   Shape and inter-particle distances never change.

   Item

   Rigid body

2. Clue

   Rotational analogue of force.

   Item

   Torque

3. Clue

   Equal, opposite forces on different lines of action.

   Item

   Couple

4. Clue

   The pivot point of a lever.

   Item

   Fulcrum

5. Clue

   Mass-weighted mean position of a system.

   Item

   Centre of mass

6. Clue

   Rotational analogue of mass.

   Item

   Inertia I

7. Clue

   Distance whose square times mass gives I.

   Item

   Gyration

8. Clue

   Heavy disc that smooths engine speed.

   Item

   Flywheel

9. Clue

   A spinning top's axis sweeping out a cone.

   Item

   Precession

Instructions

Read each clue and tap the term it describes.

Explanation