TO carry out & NOTICE:

Fill in her weight listed below in the room indicated. Friend can go into your load in any kind of unit you wish.Click ~ above the "Calculate" button.Notice that the weights ~ above other worlds will instantly fill in. An alert that her weight is various on the different worlds.


You are watching: The weight of an object is the same on two different planets

MERCURY
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Your weight is


VENUS
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Your load is


THE MOON
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Your weight is


MARS
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Your weight is


JUPITER
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Your load is


WHAT"S going ON?

Mass and also Weight

Before we gain into the subject of gravity and also how the acts, it"s necessary to recognize the difference between weight and also mass.

We frequently use the terms "mass" and "weight" interchangeably in our everyday speech, however to one astronomer or a physicist castle are totally different things. The fixed of a body is a measure of just how much matter it contains. Things with mass has a quality called inertia. If you shake an object like a rock in her hand, friend would notification that the takes a push to gain it moving, and also another push to prevent it again. If the rock is at rest, it desires to remain at rest. As soon as you"ve obtained it moving, it wants to stay moving. This top quality or "sluggishness" of matter is that is inertia. Mass is a measure of just how much inertia things displays.

Weight is an entirely different thing. Every thing in the universe v mass attracts every various other object v mass. The lot of attraction counts on the dimension of the masses and also how far apart castle are. For everyday-sized objects, this gravitational traction is vanishingly small, however the pull between a very huge object, favor the Earth, and also another object, choose you, have the right to be quickly measured. How? all you need to do is was standing on a scale! Scales measure the force of attraction in between you and also the Earth. This force of attraction in between you and the planet (or any kind of other planet) is called your weight.

If you space in a spaceship far between the stars and you placed a scale underneath you, the scale would check out zero. Her weight is zero. You are weightless. Over there is an anvil floating alongside you. It"s also weightless. Space you or the anvil mass-less? certain not. If you grabbed the anvil and also tried to shake it, friend would need to push the to obtain it going and also pull that to acquire it come stop. It still has actually inertia, and hence mass, however it has no weight. Check out the difference?

The Relationship between Gravity and also Mass and also Distance

As stated above, her weight is a measure up of the traction of gravity between you and the body you room standing on. This pressure of gravity relies on a few things. First, it counts on her mass and the mass of the world you space standing on. If you dual your mass, heaviness pulls top top you double as hard. If the world you are standing ~ above is double as massive, gravity likewise pulls on you double as hard. On the various other hand, the farther you room from the center of the planet, the weaker the pull between the planet and also your body. The pressure gets weaker fairly rapidly. If you dual your distance from the planet, the pressure is one-fourth. If girlfriend triple her separation, the pressure drops come one-ninth. Ten times the distance, one-hundredth the force. See the pattern? The force drops off through the square of the distance. If we put this into an equation it would look like this:


This equation, first derived by teacher Isaac Newton, tells us a lot. Because that instance, you may suspect that due to the fact that Jupiter is 318 time as enormous as the Earth, you have to weigh 318 times what you sweet at home. This would certainly be true if Jupiter was the very same size together the Earth. But, Jupiter is 11 time the radius that the Earth, for this reason you room 11 times more from the center. This to reduce the traction by a element of 112 resulting in about 2.53 time the traction of planet on you. Was standing on a ghost star renders you unimaginably weighty. Not just is the star really massive to start with (about the exact same as the Sun), however it is additionally incredibly tiny (about the dimension of mountain Francisco), so girlfriend are very close to the center and r is a very little number. Tiny numbers in the denominator of a portion lead to very large results!

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