Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne G Force
Name: Seth
Status: student
Age: 16
Location: N/A
Country: N/A
Date: 1999 


Question:
How do I measure g forces? Also, how would I subject a person to any number of g's for a period of time? Also, what are the effects of g forces on the body?


Replies:
The measurement of g-forces is done with an accelerometer. The term 'g-force' is really a misnomer. It is actually the acceleration a mass experiences in a given situation. On earth, one g is about 9.8 m/s^2. Let us call it 10 m/s^2 as an approximation. If you are at 2 g's, you are at about 20 m/s^2 acceleration. Most people begin to feel very lightheaded and may even grey out at about 4 g's. That is why amusement rides try to stay under this acceleration.

---Nathan A. Unterman



Click here to return to the Physics Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (help@newton.dep.anl.gov), or at Argonne's Educational Programs

NEWTON AND ASK A SCIENTIST
Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory