What kind of balls bounce the highest?
This project is about how high different balls bounce when going down a flight of wooden stairs. The purpose of this study is to understand how a variety of balls move through space while bouncing down a flight of stairs, and the effects of gravity on their movement.
Isaac Newton developed theories of gravitation in 1666 when he was 23 years old. He went on to discover three laws of motion, which govern all objects. Gravity is increased when one increases the mass of an object. Gravity pulls the object towards the earth's surface. Gravity decreases as the distance covered increases. Gravity and the laws of motion govern how basketballs, footballs, baseballs, and dog toys bounce and rebound. They also explain how balls handle the obstacle of a flight of stairs. (Glenn Research Center )
According to “physics4kids.com” Isaac Newton was one of the major forces in developing the physics of motion. He came up with the following three general laws of motion. 1st law of motion – The Law of Inertia- (If you do not apply a force to an object in motion, it will stay in motion.) 2nd law of motion- F=ma- ( In other words heavier objects require more force to move the same distance as lighter objects.) 3rd law of motion- For every action there is an equal and opposite reaction. Because of his work Newton was Knighted “Sir” Isaac Newton by the queen. (physics4kids.com)
Newton's laws of motion led to the development of a variety of sport balls of different shapes and sizes. Inventors used their knowledge of materials, weights, shapes and sizes to create balls that would uniquely fit a variety of sports. Some balls were developed with air pressure inside, others hollow, and others solid. Basketball, football, soccer, tennis, and pingpong all began to use balls that were developed specifically for that sport.
In 1666 Norman Stingley compressed rubber to create the first bouncy ball, now developed into “the zero-gravity ball”. The idea of marketing the bouncy ball was rejected by Stingley’s employer. Stingley was then contacted by a company called Wham-O who agreed to work with him on developing and marketing his ball. He spent months trying to get the rubber to stay together before he developed his formula. Six months after being introduced to the public, seven million bouncy balls were sold. The fun spheres became known world wide quickly. Even the President of the United States bought five dozen bouncy balls for the staff of the White House. However, it wasn’t all fun and games for the bouncy ball. For a short period of time, bouncy balls were actually considered hazards, due to their high flying surprize element, and were nicknamed the “Duck or get struck” ball. (Copyright © 2010, Squidoo)
s made many movies about animals but MADAGASCAR is by far the best who wouldn't love the penguins. The penguins were so popular they created a show all about them.
and he has a addiction to peanut-butter Winkies and Skipper has always been his hero that he looked up to. Private can be found in such movies as Madagascar, Madagascar 2 , and merry Madagascar.In merry Madagascar Private falls madly in love with one of Santa's reindeer Cupid. ♥
When Skipper needs analysis or an immediate invention, Kowalski is there with his crayon, notebook and slightly skewed scientific method. Kowalski's authoritative attitude covers up the fact that he usually doesn't have a clue about what's happening. Even though Kowalski's a self-proclaimed scientific mastermind, he doesn't read English any better than the rest of the Penguins.
"Technically speaking... maybe."
"Seems like I forgot to carry the one."
Rico is the ultimate loose cannon and has (literally) internalized his role as demolitions expert. He has an entire munitions department in his gut and the remarkable ability to "retrieve" on demand the appropriate bomb or any number of useful items. Can opener? Fishing poll? 10,000 ball bearings? Bass guitar? Got it.
Finally the head man SKIPPER! He is the leader of the crew. Skipper has gone through a lot Skipper use to be in the penguin army with Rico and Kowalski . Skipper is the penguin with power ! Even when relaxing he keeps the boys on their toes!