The moon is smaller than Earth. Which statement is true of a person traveling from the moon back to Earth?
Understand the Problem
The question is asking about the weight of a person who travels from the moon to the earth. We need to consider how gravity affects weight and mass. The key concept here is the difference between mass (which remains constant) and weight (which is affected by gravity).
Answer
They will weigh more on Earth.
A person traveling from the Moon to Earth will weigh more on Earth because Earth has greater gravity than the Moon.
Answer for screen readers
A person traveling from the Moon to Earth will weigh more on Earth because Earth has greater gravity than the Moon.
More Information
The Moon's gravity is about 1/6th of Earth's gravity. Weight is the measure of the force of gravity on an object. Therefore, the same person will experience a greater gravitational force and thus weigh more on Earth.
Tips
A common mistake is to confuse mass and weight. Mass remains constant, but weight changes based on gravitational force.
Sources
- Gravity 101 - GRACE Fact Sheet - earthobservatory.nasa.gov
- How Much Do You Weigh On the Moon? - Wonderopolis - wonderopolis.org
- Moon - Astronomy.org - astronomy.org
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