Detail Page
written by
David Stern
This web page gives instructions for performing mass measurements in the same method used by astronauts on the Skylab space station. Using a hacksaw blade, clamps, bolts, and a watch, the experiment shows how mass may be measured without recourse to gravity. The activity is the third of a 3-part teaching module on mass, developed by the educational website "From Stargazers to Starships". The first section discusses how such measurements were actually conducted in 1973 aboard "Skylab," and the second gives background information on the Skylab mission.
This resource is part of 2 Physics Front Topical Units.
Topic: Dynamics: Forces and Motion
Unit Title: Newton's Second Law & Net Force Inertia is proportional to mass, weight is also proportional to mass, too, so both go together. The difference is that inertia is an inherent property of matter, while weight also depends on gravity. Link to Unit:
Topic: Astronomy
Unit Title: Astronomy Activities How to measure mass in a weightless environment Link to Unit:
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![]() <a href="https://www.compadre.org/precollege/items/detail.cfm?ID=1550">Stern, David. Mass - Comparing Masses Without Use of Gravity. September 21, 2004.</a>
![]() D. Stern, Mass - Comparing Masses Without Use of Gravity (2004), <http://www.phy6.org/stargaze/Smass.htm>.
![]() Stern, D. (2004, September 21). Mass - Comparing Masses Without Use of Gravity. Retrieved March 22, 2025, from http://www.phy6.org/stargaze/Smass.htm
![]() Stern, David. Mass - Comparing Masses Without Use of Gravity. September 21, 2004. http://www.phy6.org/stargaze/Smass.htm (accessed 22 March 2025).
![]() Stern, David. Mass - Comparing Masses Without Use of Gravity. 2004. 21 Sep. 2004. 22 Mar. 2025 <http://www.phy6.org/stargaze/Smass.htm>.
![]() @misc{
Author = "David Stern",
Title = {Mass - Comparing Masses Without Use of Gravity},
Volume = {2025},
Number = {22 March 2025},
Month = {September 21, 2004},
Year = {2004}
}
![]() %A David Stern %T Mass - Comparing Masses Without Use of Gravity %D September 21, 2004 %U http://www.phy6.org/stargaze/Smass.htm %O text/html ![]() %0 Electronic Source %A Stern, David %D September 21, 2004 %T Mass - Comparing Masses Without Use of Gravity %V 2025 %N 22 March 2025 %8 September 21, 2004 %9 text/html %U http://www.phy6.org/stargaze/Smass.htm Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.
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