Students learn more about forces by examining the force of gravitational
attraction. They observe how
This is actually quite a good question. I'm going to answer in terms of general relativity. Let's say you're in a box (or a spaceship) and you are in interst...
Nov 2, 2008
Jan 30, 2012
Jan 4, 2015
Gravity is a major player in the study of physical science. It is, of course, the force
of gravity that causes
Jun 24, 2012
However, in the real world, we have
Ever tried throwing a ball, high up in the air? Does it keep flying? No, it comes back to the ground. You might think it is magic? But an adult will disagree and say ...
Sep 21, 2004
If something is dropped, why does it