- 1. Mechanics
- A. First Day Demos
- B. First Law, Inertia
- C. Second Law
- D. Third Law
- E. Angular Momentum
- F. Ballistics
- G. Center of Mass Demonstrations
- H. Energy
- I. Friction
- J. Gravitational Acceleration
- K. Kinematics
- L. Momentum and Collisions
- M. Nonlinear Mechanics
- N. Rotational Inertia
- O. Statics
- P. Torque
- Q. Uniform Circular Motion
- R. Vectors and Forces
- S. Data Studio
- 2. Harmonic Motion, Waves and Sound
- 3. Matter and Thermodynamics
- 4. Electricity and Magnetism
- 5. Light and Optics
- 6. Modern Physics
- 7. Astronomy
- 8. Software and Multimedia
- 9. Index and code conversion from older manual
- External Resources
Instructional Resource Lab
40. Torsion Pendulum
The Position of masses on rods can be varied to change the rotational inertia of a torsion pendulum. The period of the pendulum is longer for larger moments of inertia. The torque of the support wire accelerates the rotational motion more slowly when the rotational inertia is large. (See Simple Harmonic Motion)
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