Where are heavier objects?

The higher the height, the less the earth's force draws the objects, so they become lighter. If you go beyond the atmosphere of the earth, the weight of the object will be 0. Inverted, you can assume that the deeper into the ground, the heavier the object becomes. Note, this is purely misconception!

When putting things into the depths of the earth, the forces work from many sides, but only the attraction from the center of the earth is put into the object . (Artwork: nobelprize) Earth absorbs outer objects just like its whole mass is centered on the mind. According to the law of gravitation: the reduced suction force is inversely proportional to the square of the distance, the higher the gravity, the weaker the attraction of the earth on the objects.

If we put a weight of 1 kg at a height of 6,400 km, ie move it away from the center of the earth twice as much as the radius of the earth, then the attraction will decrease by 2 caps twice, ie 4 times, and the weight will hang on. Spring scales will weigh only 250 grams, not 1 kg. If we bring the weight away from the ground 12,800 km, which is far from the center of the earth three times, the suction force decreases 9 times, the weight of 1 kg is only 111 g .

From the above calculation, you will all come up with the idea that when you put the weight in the depth of the earth, that is, when you move the object to the center, you must see the attraction increase, or the weight is more. However, in fact, the object does not increase its weight when it is inserted deep into the earth, but on the contrary, is lighter.

This is because now the object is no longer attracted from one side, but from many parts of the earth (bottom, left, right .). Ultimately, the forces from the side, from above . cancel each other out, leaving only the gravitational force of the sphere with the distance from the center of the earth to where the object is located. Therefore, the deeper we go into the earth, the faster the weight of the object decreases. When coming to the center of the earth, things become weightless.

So, on the ground, things will be heavier (*).

* The situation is the same if the earth is completely uniform in density.But in fact, the Earth's own mass increases when it approaches the center: So, when entering deep into the Earth's heart, gravity first increases to some extent, then begins to decrease.