![]() ![]() (Notice: The School for Champions may earn commissions from book purchases) The mass of an object is the same on the Moon as it is on Earth, but its weight is 1/6 as much on the Moon as on the Earth. The gravity equation shows the relationship between mass, weight and acceleration due to gravity. The units of measurement for mass, weight, and force of gravity are the International System of Units (SI) or the British Imperial and United States system of measurements. (See Gravity on Earth versus on Moon for more information) Summary Thus, if you weigh 60 N or 132 pound-force on the Earth, you would weigh only 10 N (22 lb-f) on the Moon. g M is the acceleration due to the Moon's gravity (1.6 m/s 2 or 5.3 ft/s 2).Since gravity on the Moon is about 1/6 of that on Earth, an object will weigh 1/6 as much on the Moon. However, the weight of the object is a function of the acceleration due to gravity. The mass of an object-or the amount of matter it contains-is the same on the Moon as it is on the Earth. (See Confusion about Mass and Weight Units for more information.) Weight on the Moon Both expressions are scientifically incorrect. They will say that an object weighs 25 kg and another object as a mass of 2 pounds. Many people (and even textbooks) mix up mass and weight. W = (1 lb)*(32 ft/s 2) = 32 lb-f Confusion between units of weight and mass The acceleration due to the force of gravity ( g) equals aproximately 32 feet/s 2. The unit of weight is a pound-force ( lb-f), which is equal to the force of gravity exerted on a mass of one avoirdupois pound at the surface of Earth. The avoirdupois pound ( lb) is defined as a measure of mass in the British Imperial measurement system, as well as the United States system of units. W = (1 kilogram)*(9.8 meters/s 2) = 9.8 newtons British or US system Mass Since the acceleration due to the force of gravity ( g) equals aproximately 9.8 meters/s 2, the weight of an object with a mass of 1 kilogram is 9.8 newtons under standard conditions on the Earth's surface. Kilogram-force ( kg-f) is also used to designate force. The official metric unit of force is the newton ( N), which is the force required to accelerate a mass of 1 kg to 1 meter/s 2. The kilogram ( kg) is the SI unit of mass and it is the almost universally used standard mass unit. British Imperial and United States system of measurements.International System of Units (SI) or metric system.The major systems for the units of measurement for mass, weight, and force of gravity are the: The gravity equation defines weight as the force applied on an object due to gravity. g is the acceleration due to the force of gravity ( g = 9.8 meters/s 2 or 32 ft/s 2 on Earth).m is the mass in kilograms (kg) or pounds (lb).W is the weight on Earth in newtons (N) or pound-force (lb-f).The gravity equation defines the relationship between weight, mass, and gravity: ![]()
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