Physics Home

GC Physics Department
Horsepower Lab

GC students in General Physics get to measure the horsepower and torque of their cars. A special sensor system allows a laptop computer to measure the position and velocity of a car in real time. By flooring the car on a straight level road, they collect data which yield the horsepower and torque curves versus engine speed. Designed by professor J.R. Buschert, the system is unique to GC and won top prize in a national physics apparatus competition. A more complete description is published in The Physics Teacher Sept 2003.

Hologram of vibrating violin surface



Latest Report
from Fall 2007

2001 Honda Civic
Alissa Stalter
Erin Diller
Kelly Mast
Sae Chan Lee

Archive of All Reports


How it works
  System Components
  Conversion Circuit
  On the Road
  Data Analysis

Clutch burn-out
In 1999 one lab group used an 85 Dodge Colt with a clutch that was already slipping. In the course of the lab it burned out completely while they were collecting data.
  See the plot
  See their report


Questions can be directed to
John R Buschert
Professor of Physics

Goshen College
johnrb@goshen.edu