Earth vs. Moon Gravity: Key Differences Explained
Earth gravity pulls at 9.8 m/s²; Moon gravity pulls at about 1.6 m/s²—roughly one-sixth as strong.
People mix them up because movies show astronauts leaping high, making it seem like “no gravity” on the Moon. In reality, the Moon has gravity—just weaker—so objects still fall, only slower.
Key Differences
Earth: 9.8 m/s² acceleration; keeps oceans, atmosphere, and your coffee in the cup. Moon: 1.6 m/s²; a 180-lb astronaut weighs only 30 lbs, letting them hop instead of walk.
Examples and Daily Life
Drop a phone on Earth—bam, cracked screen. On the Moon, it drifts down gently. A golf ball hit with the same swing flies six times farther, explaining why Apollo 14’s Alan Shepard’s drive “went for miles.”
Why doesn’t the Moon fly away if its gravity is so low?
Gravity doesn’t need to be strong to create orbit; the Moon’s velocity and Earth’s pull balance perfectly, keeping it in stable orbit.
Could humans live permanently with Moon gravity?
Yes, but long-term health—muscle loss, bone density—would require daily resistance exercise and possibly rotating habitats for artificial Earth-like gravity.