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Understanding Mass and Weight in Space Exploration: Key Differences and Implications

This unit explores the critical concept of mass versus weight in the context of manned space exploration. Mass refers to the amount of matter an object contains and remains constant regardless of location, even in space. In contrast, weight is the force exerted by gravity on that mass, which can change based on the gravitational pull of different celestial bodies. For instance, while an astronaut's mass remains unchanged when traveling from Earth to Mars, their weight decreases due to Mars’ lower gravity. Understanding these differences is crucial for preparing for future space missions.

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Understanding Mass and Weight in Space Exploration: Key Differences and Implications

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  1. Unit 5 – Manned Space Exploration Mass vs Weight

  2. MASS The amount of matter something contains. Does our mass change in space? NO

  3. WEIGHT The measurement of the pull of gravity on an object. When you step on a scale, it is actually measuring the attraction between you and the Earth and gives you a number in pounds. Does our weight change in space? YES

  4. WEIGHT Why does our weight change when we go into space? If we went from Earth to Mars, our weight would change because Mars has less gravity than Earth. Asmall planet has less gravity and a larger planet has more gravity.

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