CSAAPT Fall 2026 Semi-Virtual Meeting / PICUP Workshop

Series of Mini Demos

Oct 10, 2026, 3:30 PM

15m

William & Mary, Integrated Science Center 4

Demo (15 min) Room 3

Speaker

Richard Terwilliger (Retired Physics/Earth Science Teacher - Suffern Central School District, Suffern, NY)

Description

1. Hurdy Gurdy (1 min) How the Hurdy Gurdy can demonstrate mechanical acoustic coupling
2. DMV Reaction Drop Card (1 min) The DMV reaction card is used to determine the reaction time of students. Students can use this to calculate the distance travelled before hitting the brakes.
3. The Inverse Relationship (1 min) A very effective demonstration that helps students visualize how distance affects magnitudes where the inverse relationship applies.
4. The Resonance Bar (2-3 mins) This demonstration is used to show nodes, antinodes, the fundamental frequency, overtones, standing waves and the relationship between frequency and wavelength.
5. Total Internal reflection Tank (2 mins) This device can demonstrate reflection, refraction and total internal reflection.
6. Standing Wave Generator (2 mins) Create standing waves that show Multiple nodes and antinodes.

Presentation materials

CSAAPT Mini Demonstration Presentation 09-2026.pptx