Question

(01.02 mc) the table shows the values of two quantities for an astronaut on earth and jupiter.
astronaut’s details
\t\tearth\tjupiter
quantity a\t705.6 units\t1,868.4 units
quantity b\t72 units\t72 units
which of the following names the quantity and correctly explains why that represents the amount of matter present in the astronaut?
○ quantity a, because it is proportional to mass
○ quantity a, because it changes with gravitational pull
○ quantity b, because it is the gravitational pull exerted on the astronaut
○ quantity b, because it is independent of the astronaut’s location in space

Explanation:

To determine which quantity represents the amount of matter (mass) in the astronaut, we recall:

• Mass is the amount of matter, independent of location (gravity).
• Weight is the gravitational pull on mass, so it changes with gravity (e.g., Earth vs. Jupiter).

Analyzing the table:

• Quantity A changes (705.6 vs. 1,868.4 units) → this is weight (depends on gravity).
• Quantity B stays 72 units → this is mass (independent of location).

Now, evaluate the options:

• "Quantity A, because it is proportional to mass": Weight is proportional to mass, but Quantity A is weight (not mass itself), so incorrect.
• "Quantity A, because it changes with gravitational pull": This describes weight, not mass (the amount of matter), so incorrect.
• "Quantity B, because it is the gravitational pull...": Quantity B is constant (mass), not gravitational pull (which changes), so incorrect.
• "Quantity B, because it is independent of the astronaut’s location...": Mass (amount of matter) does not change with location (gravity), so this matches.

Answer:

D. Quantity B, because it is independent of the astronaut’s location in space (Note: If options are labeled as A, B, C, D with D being the last option, the correct one is the last option: "Quantity B, because it is independent of the astronaut’s location in space")