Can you explain gravity? How come two balls hit the ground at the same time?If you hang a one liter bag of formula from a six foot pole and another one liter bag of formula from a three foot pole. Will the bags empty at the same rate ??
All objects are attracted to each other. This attraction is called gravity. Only large objects like Earth have an attraction strong enough to feel.
Everything falls to the Earth at the same speed, it doesn't matter how big or small it is. A falling object falls faster and faster like a car moving down a road. How come they all fall at the same speed?
Isaac Newton showed us that larger objects have a bigger attraction to Earth than small objects. But, the extra attraction is necessary because it takes more force to pull the larger objects down. The result is an equalling out, with the speed staying the same for all objects!
Gravity gets weaker when you move farther away from Earth. If you hold a ball at three feet and one at 6 feet, they will fall at almost exactly the same speed. But if you were on top of a mountain and you dropped a ball, it would fall at a slower speed because gravity isn't pulling as hard.
Submitted by Danielle (California, USA), Matthew (Ontario, Canada), Adrienne (Michigan, USA), G.S.(New Jersey, USA), K(Chennai, India)
(May 18, 1999)
You might also be interested in:
A question more than four decades old will be answered soon. The last solar eclipse of the millennium was used by scientists around the world to test a theory first developed in 1954. A French economist
...more It will take many more months before the final decision, but scientists are already studying the latest data. The last solar eclipse of the millennium served as a great opportunity to test a phenomenon
...more It depends on which type of motion you are asking about. If you take a birds-eye view from the top of the solar system all the planets orbit around the Sun in a counter-clockwise (or direct) direction.
...more Almost everyone has a question or two about living in space. What do astronauts do in space? How do they do everyday things like eat, sleep and go to the bathroom? It's important to note that astronauts
...moreThere is a really neat internet program called Solar System Live that shows the position of all of the planets and the Sun for any given day. If you go to that page, you'll see an image similar to the
...moreThe picture of the American Flag (the one put there by the Apollo astronauts) is waving (or straight out) in the wind. How could that be possible if there is no atmosphere on the Moon? Was it some sort
...moreI was wondering if there is a new planet? Are there planets (a tenth planet?) after Pluto belonging to our solar system? What are the names of the new planets discovered in the solar system? Are there
...moreIf that is so, the energy released during the Big Bang must have created many such black holes. Therefore most of the Energy of the Big bang must have disappeared in that form. Then how did the Universe
...more