**If mass on earth is 80 kg . Find its mass on the moon?**
VerifiedThis is a very important concept that often confuses students! The key thing to understand is that mass remains constant everywhere in the universe. Whether you're on Earth, the Moon, Mars, or floating in space, your mass will always be the same.
Mass is a fundamental property of matter that tells us how much matter or substance is present in an object. It's measured in kilograms (kg) and doesn't change based on location. Think of it this way - if you have a bag containing 10 apples, it will still contain 10 apples whether you take it to your room, your school, or even to the Moon!
What actually changes when we go from Earth to the Moon is our weight, not our mass. Weight is the force exerted by gravity on an object and is calculated using the formula: Weight = mass × gravitational acceleration (W = mg). Since the Moon's gravitational pull is about 1/6th of Earth's gravity, your weight on the Moon would be much less than on Earth, but your mass remains unchanged.
Here's a simple way to remember the difference: • Mass = Amount of matter in an object (always constant) • Weight = Force due to gravity (changes with location) • Mass is measured in kg, while weight is measured in Newtons (N)
So when the question asks for the mass on the Moon, the answer is simply the same as the mass on Earth. An 80 kg person will have a mass of 80 kg everywhere in the universe. However, their weight would be different - on Earth it would be about 800 N, while on the Moon it would be only about 133 N due to the weaker gravitational field.
