Slinky and Waves part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
Use a Slinky to show:P and S waves, Wave reflection, and Standing waves in interactive lecture demonstration.

Helping Students Discover Total Internal Reflection part of Pedagogy in Action:Library:Interactive Lectures:Examples
Students learn the basic relationship of Snell's Law, practice applying it to a situation, then are given another situation where it "doesn't work."??? This situation turns out to be one in which total internal reflection occurs. Students are then shown what happens with classroom apparatus.

Properties of Electrostatic Charge: Interactive Lecture Demonstration part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
This activity is an interactive lecture demonstration format which can be used to teach the first lesson of electrostatics. Students will investigate conservation of charge, charge by contact, polarization of charge and charge by induction.

The Magic of Optics: Now you see it, now you don't part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
A magical demonstration where a Pyrex tube vanishes in a beaker of mineral oil. Useful demonstration to introduce to concept of refraction (and/or partial reflection).

Introduction to Torques: A Question of Balance, Featuring the Sledge Hammer of the Sierra Madre part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
Interactive Lecture Demonstrations to illustrate the nature of torques and on the balancing of torques in static equilibrium.

Elastic and Inelastic Collisions: The Case of the Happy and Sad Balls part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
Interactive Lecture Demonstration to illustrate that impulses are larger in elastic collisions than in inelastic collisions if other factors are the same.

Understanding the Work Energy Theorem: In the lab or as lecture demonstration part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
This series of questions before instruction, in-class peer instruction as students come to understanding, and visualization of an important mathematical relationship allow students to iterate and improve their understanding of work incrementally.

Experiment Problem in Kinematics: How Much Does it Take to Win the Race? part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
In this activity, students are presented with two objects that have different constant speeds and that will race each other. The students must determine which object will win the race, as well as either how much time elapses between the objects crossing the finish line.

Introduction to Work and Energy: The Hopper Popper Surprise part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples

Understanding the Motion of a Harmonic Oscillator part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
This inteactive lecture and series of demonstrations develops the concepts and vocabulary of oscillatory motion as it relates to the motion of a mass on a spring.