Isabela, Luisa, and Mirabel are discussing gravity. Luisa says that they would weigh less on the moon than on the Earth because the moon exerts less gravity than the Earth. Mirabel says that their mass would be the same on the moon as it is on Earth. Isabela says that her weight and mass would stay the same if she went to the moon. Who is correct? aIsabela is correct because weight and mass do not change based on the force of gravity. bMirabel and Luisa are BOTH correct because the moon exerts less gravity than the Earth AND their mass would be the same on the moon as it is on Earth. cMirabel is correct because their mass would be the same on the moon as it is on Earth. dLuisa is correct because the moon exerts less gravity than the Earth.

1 answer

The correct answer is c: Mirabel is correct because their mass would be the same on the moon as it is on Earth.

To clarify:

  • Mass is a measure of the amount of matter in an object and does not change regardless of location (Earth, Moon, etc.).
  • Weight is the force exerted by gravity on that mass; it does change depending on the gravitational pull of the celestial body. Therefore, you would weigh less on the Moon due to its weaker gravity compared to Earth.

So:

  • Luisa is partially correct in terms of weight but does not mention mass.
  • Isabela is incorrect because her weight would change, even though her mass remains the same.
  • Mirabel is accurate in stating that their mass remains the same on the Moon as it is on Earth.