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Earth's Weight

Science brain teasers require understanding of the physical or biological world and the laws that govern it.


Puzzle ID:#2892
Fun:*** (2.25)
Difficulty:* (0.84)
Submitted By:204_BLaZe_41****
Corrected By:krishnan




It is estimated that the earth weighs 6 sextillion tons. How much more would the earth weigh if one sextillion tons of concrete and stone were used to build a large wall?

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Apr 01, 2002

Good one!
Apr 04, 2002

That had to be the easiest teaser I have ever done!
Apr 06, 2002

I think the earth's weight would drop, because you are moving mass away from its center. The material in the wall weighs less then the same material a few feet lower (in the ground.) Or, maby the weight of the earth (the net force on it from its own gravity) is zero both before the wall and after?
Apr 16, 2002

That would be a big wall............
Apr 25, 2002

Hey! Good job kendrobert, The question should say mass and not wheight. The same with the answer. Still, good job BlaZe
(user deleted)
Aug 14, 2002

Assuming you took the stuff from earth's own mass, what would you build the wall on?
Nov 14, 2002

That would be a Great Wall.
May 22, 2003

This is more of a Trick teaser
Jun 11, 2005

Good one.
Oct 07, 2007

Kendroberts, the density of a material changes by depth, not its weight!
Oct 07, 2007

and also that was the easiest teaser ever
Nov 03, 2009

Fun, though I think trick works. ;)
Sep 17, 2016

I believe the earth would weigh a little less. In constructing the wall, dust and gases would be created. MOST of the dust would fall back to earth, but SOME of the gases would dissipate into the atmosphere.

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