| Illumination and Photometry (exp#: 71990-510) |
| Inclined Linear-Air-Track Atwood Machine (exp#: 71990-144) |
| Index of Refraction by Apparent Thickness (exp#: 71990-532) |
| Index of Refraction of a Liquid (Liquid Lens) (exp#: 71990-519) |
| Index of Refraction; Simple Spectrometer (exp#: 71990-551) |
| Induced EMF (exp#: 71990-668) |
| Induction of EMF by Changing Currents (exp#: 71990-669) |
| Inelastic Impact 1 (exp#: 71990-172) |
| Inelastic Impact 2 (exp#: 71990-173) |
| Interference of Microwaves (exp#: 71990-569) |
| Interference: Newton's Rings (exp#: 71990-546) |
| Inverse Square Law in Magnetism (exp#: 71990-613) |
| Joule's Law for the Heating Effect of an Electric Current (exp#: 71990-641) |
| Kinetic Theory of Gases (exp#: 71990-349) |
| Kirchhoff's Laws (exp#: 71990-644) |
| Kundt's Experiment (exp#: 71990-811) |