UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
How it Works
Ask a Question
Search Topics
Our Scientists
Science Links
Contact Information
How do you make a newton meter at home?
Question Date: 2004-12-04
Answer 1:

Newtons are a measure of force, so any system with a linear response could be used to measure. For example, a spring will stretch proportional to the applied force -- so you only need to make a scale on which to read how far the spring has stretched and calibrate it to Newtons.

Another method is to us a pulley to a known weight -- the rope will then exert a known force. If you hook the rope to the unknown force and then add weight until the rope does not accelerate, you can then read off the force by measuring the weight. For very small forces, one can use a magnet at a known distance from a piece of iron. If an electro-magnet (coil of wire)is used, the force is proportional to the current in the wire, which can be measured very accurately.

Click Here to return to the search form.

University of California, Santa Barbara Materials Research Laboratory National Science Foundation
This program is co-sponsored by the National Science Foundation and UCSB School-University Partnerships
Copyright © 2020 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use