# Why do astronauts need to know the difference between weight and mass?

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Mass plays a critical role in the activities and experiments performed by the astronauts. Mass does not change whether it is measured on Earth or the ISS. Weight can change depending upon the gravitational pull such as on the Moon where weight is reduced to one-sixth that of on Earth.

## Why is it important to know mass and weight?

A gram is a mass measurement not a weight. Mass is the measurement of matter an object contains while weight is the gravitational pull the earth has on an object. Mass is important to measure because it will measure the amount of force it will take to move the object.

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## How do an astronaut’s mass and weight in Outer space compare with the astronaut’s mass and weight on the Earth’s surface?

The Earth is much more massive than the moon, so the astronaut’s weight would be greater on the Earth than on the moon. This leads to the common misconception that mass changes in space, but really it is just the gravitational interactions between masses that change.

## Why does an astronaut’s weight change in space but not his mass?

The weight of an object is a force. It is the force with which a body is attracted toward Earth or another celestial body. This means that when you are in space, away from Earth, objects do not weight anything since they do not feel gravitational attraction to the Earth. What objects have though in space is mass.

## What weight and mass do astronauts travel in space?

The first obstacle is that in the microgravity of space, their weight is essentially zero, all the time. But astronauts still have mass, which they can measure to determine what their weight on Earth would be, and to let medical researchers track changes in body mass due to deconditioning in orbit.

## What’s the difference between weight and mass?

Mass is a measure of the amount of material in an object, directly related to the number and type of atoms present in the object. … The unit of mass in the SI system is the kilogram (kg). Weight. In the trading of goods, weight is taken to mean the same as mass and is measured in kilograms.

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## What is the difference between mass and weight with examples?

For example, your body’s mass is a set value, but your weight is different on the Moon compared with on Earth. Mass is a property of matter. The mass of an object is the same everywhere. Weight depends on the effect of gravity.

## Why does an astronaut weigh more on Earth than in space when his or her mass remains the same in both places?

Why does an astronaut weigh more on Earth than in space when his/her mass remains the same in both places? … In this case, the farther the astronaut is from earth the less gravitational force is pulling on him or her. Less gravitational attraction means the astronaut will weigh less.

## What happens to astronauts mass and weight?

Mass plays a critical role in the activities and experiments performed by the astronauts. Mass does not change whether it is measured on Earth or the ISS. Weight can change depending upon the gravitational pull such as on the Moon where weight is reduced to one-sixth that of on Earth.

## Why astronauts are weightless in space?

(B) An astronaut orbiting the Earth does feel weightless because there is no ground or normal force to counteract the force of gravity. Thus, the astronaut is falling. However, since the astronaut is also moving forward super fast, he/she continuously falls around the Earth rather than crashing into the Earth.

## Why are astronauts in space said to be weightless but not massless?

why are the astronauts in space said to be weightless but not massless? because the force of gravity is extremely small and space in a lack of attraction between bodies that gives away to that astronauts is essentially absent. they maintain their intrinsic Mass however.

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## Why are astronauts weightless in space quizlet?

Why are astronauts weightless in the space station? because they are in a constant state of free fall around the Earth. … An object remains in motion at constant velocity, or remains at rest, unless acted upon by a net force.

## How do astronauts measure their mass in space?

Using SLAMMD astronauts can accurately measure body mass with the help of Newton’s Second Law of Motion, F=ma (force is equal to mass times acceleration). … Optical sensors measure the acceleration (a) of the movement. Puttings these value for force and acceleration into the equation, SLAMMD outputs the astonaut’s mass.

## Why is your weight different on Earth than in space?

Stars, moons, and planets all have gravity. The amount of gravity the have depends on their size. So, a small planet has less and larger planet has more gravity. Just like the planets, a person with more mass has more gravity and therefore weighs more.

## Is mass and weight the same in space?

No matter where you are in the universe, your mass is always the same: mass is a measure of the amount of matter which makes up an object. … This is what differentiates mass from weight: we will have the same mass anywhere in the universe regardless of what bodies we are near.