Log In
Physics
Chemistry
Biology
Earth & Environmental
Engineering
Middle
Elementary
Home - Physics
Essential Physics
The Physics textbook of today AND tomorrow!
Learn More
Home - Engineering
Materials Testing System
Hands-on investigation of compression, tension, buckling, bending, shearing and more.
Home - Chemistry
Essential Chemistry
The Chemistry textbook of today AND tomorrow!
Home - Biology
Wireless CO2 Sensor
The simplest, most cost effective and versatile sensor for measuring carbon dioxide gas levels.
Home - Earth & Environmental Science
Wireless Weather Sensor w/ GPS
When "where" matters. Coordinate atmospheric measurements with location/GIS data.
Home - Middle School
17 simultaneous measurements to analyze trends
Home - Elementary Science
Wireless Sensor Bundle
Our new low cost sensors don't require an interface and connect directly to Mac® & Windows® computers, iPads®, iPhones®, Android® Tablets & phones and Chromebooks™.
New for 2019!
See our growing line of Wireless Sensors
See Sensors
Contact Us:
Email Tech Support 800-772-8700 x 1004 (Inside US) 916-462-8384 (Outside US)
Email Customer Service 1-877-373-0300 (Inside US) 916-462-8383 (Outside US)
Mon-Thurs: 7:00 a.m.-4:30 p.m. Fri: 7:00 a.m.-2:00 p.m. (Pacific)
PASCO Blog
Tips and interesting applications using PASCO sensors, software and equipment.
Have innovative lab ideas you'd like to share? We'd love to hear from you!
Free Trial Update
PASCO Capstone User's Guide
Free Experiments
Released 1/17/2019
Free Download
Released 10/31/2018
Job Opportunities at PASCO
800-772-8700 x 1004 (Inside US) 916-462-8384 (Outside US)
Fax: 916-786-8905
Mon-Thurs: 7:00 a.m.-4:30 p.m.Fri: 7:00 a.m.-2:00 p.m. (Pacific)
1-877-373-0300 (Inside US) 916-462-8383 (Outside US)
These rods emit a VERY LOUD pure tone when stroked. The nodes are marked on the rods to indicate where you should hold them. Standing longitudinal waves are set up in the rod by stroking the rod with your fingers (coated with the included rosin). Investigate the effects of different lengths and holding the rod at different nodes.
Sliding your fingers on the rod (with the help of rosin) causes the metal rods to vibrate. When caused to vibrate at their natural frequency the rods create standing longitudinal waves. At this point of resonance the rods have points that don't vibrate at all (nodes) and points that vibrate at their maximum (antinodes). The rods will always have antinodes at either end but they can vibrate a a few patterns with equally spaced nodes in between. You can force the rods to vibrate in a specific pattern by holding it at the place you don't want to vibrate, causing a node at that point. The different patterns correspond to different wavelengths and therefore different frequencies or pitches.
Rosin Bag (SE-6659)
A replacement bag of rosin for use with the Singing Rods.
Double-Length Slinky (SE-8760)
Oscillations, Waves, and Sound Kit (EP-3578)
Resonance Boxes: Sympathetic Resonance Box Set (SE-7345)