Mass vs. Weight in space questions

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SUMMARY

The discussion centers on the distinction between mass and weight, particularly in the context of an experiment conducted on Earth versus the Moon. Mass, measured using a triple beam balance, remains constant regardless of location, while weight, determined with a spring scale, varies due to differences in gravitational force. The participant initially misunderstood that mass would change on the Moon, while correctly identifying that weight would decrease due to lower gravity. The slope of the weight vs. mass graph, calculated as 11.43, would also change as it is dependent on the gravitational force acting on the mass.

PREREQUISITES
  • Understanding of mass and weight definitions
  • Familiarity with gravitational force concepts
  • Knowledge of using a triple beam balance and spring scale
  • Basic graphing skills for plotting weight vs. mass
NEXT STEPS
  • Study the effects of gravity on weight in different celestial environments
  • Learn about the principles of mass measurement using various tools
  • Explore the mathematical relationship between mass and weight, including the formula Weight = Mass x Gravity
  • Investigate the implications of mass and weight in physics experiments on other planets
USEFUL FOR

Students in physics, educators teaching concepts of mass and weight, and anyone interested in understanding gravitational effects in different environments.

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The lab that we did measured mass vs. weight. We took eight objects and found that mass using the triple beam balance (units in Kg) and the found the weight using a spring scale (units in Newtons)


Homework Statement



Assume that this experiement had been performed on the moon istead on on Earth. Decide which of the following quantities would have the same values and which would be different. Discuss either why that quantity would not change, or if it would chamge, how it would be different and why?

Homework Equations



The mass of each object:

The weight of each object:

The slope of the weight vs. mass graph:

Theequation relating mass and weight:

The Attempt at a Solution



The mass: I said the mass would change because a triple beam balance relies on gravity, therefore, it would not work on the moon.

The weight: it would not change bc it does not rely on gravity

The slope of the weight vs. mass graph: I calculated the slope to be 11.43 using two points on my graph, and I think it would chamge because the mass would change, as I said above.

The equation relating mass and weight: My equation was y=11.43x there was no y intercept because we started the line at the origin. So I think the equation would change because the slope would change.

Thank you!
 
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You might want to re-think your definition of mass and weight. What defines mass and what defines weight?
 
I believe that you have your two definitions of mass and weight switched around. Mass is the same wherever you go. Weight = mass*gravity. The moon has less gravity and thus the weight would be less.
 

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