Narrator: One day, Isaac was sitting underneath an apple tree, contemplating the meaning of life, when all of a sudden, an apple hit him on the head. It is said that from this event, he discovered gravity.
Voice: Look, Mary! I discovered gravy
Narrator: No, not gravy, gravity.
He described gravity as a constant downward acceleration that keeps people and things from flying off into space. Gravity is unique from the earth to the moon, and as the size of the heavenly body increases, that gravity also increases.
However, Newton did not describe gravity in terms of acceleration alone. He also described it in terms of force.
Voice: Da da da da da da da da…
Narrator: No, not that kind of force
Narrator: He equated Force to the mass of an object multiplied by the amount of acceleration.
In simple terms, he thought of it as a push or a pull.
In terms of the earth’s gravity, the earth is pulling our mass down, creating a gravitational force, or weight.
He identified this difference between mass and weight. Mass is an unchanging characteristic of an object, while weight changes from location to location.
Slide 13, 14, 15
As he thought about the apple and searched the night sky, he understood that an apple on earth would have a very different weight from the same apple on the moon, even though it is the same apple.
Newton went on to think up more theories on math and science, and he wrote about his many ideas.
Everyone was thrilled.
Voice: Woo hoo! Isaac! Isaac! Isaac!
Narrator: He was knighted.
Slide 19, 20
And he lived happily ever after. The End. And may the mass times the acceleration be with you.
Portrait of Isaac Newton: http://www.bbc.co.uk
Newton under Apple Tree: http://mitchlanaillustration.blogspot.com
Newton with Gravy: http://www.cardstock.com
Floating Girl: http://jperegrineart.typepad.com
Apple on Scale: http://www.thehealthcaregroup.com.au
Cheering Crowd: http://www.fotosearch.com
Elephant on Scale: http://www.clipartof.com
Newton under Tree at Night: http://liklihoodofconfusion.com
Newton’s Book: http://www.spaceflight.esa.int
Newton Postage Stamp: http://th.physik.uni-frankfurt.de/~jr/gif/stamps/stamp_newton.jpg