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 ??
Have you ever played with magnets? The Earth acts like a giant magnet, pulling everything near it to the ground. It pulls on bigger objects more than little objects. But it's harder to pull larger objects down than little ones. That's why they all fall at the same speed to the ground.
Have you ever jumped off a swing? Gravity pulls you down at the same speed as a ball that you throw into the air! It doesn't matter how big you are! Isaac Newton was one of the first scientists to work with gravity.
Things that are farther away aren't pulled on as much, so they fall slower than objects near the ground.
Submitted by Danielle (age 9, California, USA), Matthew (age 11, Ontario, Canada), Adrienne (age 33, Michigan, USA), G.S.(age 40, New Jersey, USA), K(age 13, Chennai , India)
(May 18, 1999)
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