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Physics Presentation on the Science of Motion

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Shei-Anne Peets

on 25 February 2014

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Transcript of Physics Presentation on the Science of Motion

The Science of Motion
Isaac Newton
Galileo Galilei
Summary Of Presentation
In this presentation we will discuss how Aristotle, Copernicus, Galileo and Isaac Newton has influenced the work of Science when it comes to Motion.
Neither of the four men were born during the same time period and each of them had their own 'theory' on motion we will discuss how their views have all lead to our current view on Motion.
Aristotle was born in 384 B.C, in Greece. He is a well known ancient Greek philosopher. He has had a large impact on science, but today we will discuss his theory on motion and how his false ideas were believed to be true for
2000 years
only because they seemed logical due to perception.
Aristotle's Theory
About Isaac Newton
Sir Isaac Newton was born on January 4th 1643 in the United Kingdom. He was an English physicist and mathematician who is widely regarded as one of the most influential scientists of all time and as a key figure in the scientific revolution on motion. Newtons first law speaks of Inertia; a word used by Galileo to describe one of his theories.
More About Isaac Newton
Newton's Theory's
1.)An object will maintain its state of rest or constant speed in a straight line unless acted upon by an external unbalanced force

2.) When an external unbalanced force is applied to an object at rest or in constant speed in a straight line, the object accelerates in the direction of the unbalanced force. Furthermore, the acceleration of the object is directly proportional to the net forces acting on the object, and inversely proportional to the mass of the object being accelerated (F=ma) "

3.) When an object exerts a force on a second object, the second object will exert a force of equal magnitude, and opposite direction on the first object
About Galileo
Galileo Galilei was born in Pisa, Italy on February 15,1564. He was an Italian physicist, astronomer and philosopher. he played a major role in the scientific revolution.
Galileo's theories
The motion of a falling object is independent of mass. Meaning two objects of unequal masses will fall to the ground when dropped from a set height in equal times.
The reason why objects did not always fall in the same time was because of a retarding force called friction.
All objects all want to stay in motion in a straight line in constant speed, they resist changes in motion by trying to stay in motion - a property I call Inertia.
About Copernicus
Nicolaus Copernicus was born on February 19th, 1473 in Poland. He was a Renaissance mathematician and astronomer who formulated a heliocentric model of the universe which placed the Sun, rather than the Earth, at the center.
Copernicus' Theory
Work Cited
"Aristotle's Views On Motion." ThinkQuest. Oracle Foundation, n.d. Web. 10 Feb. 2014.

"Galileo's Views On Motion." ThinkQuest. Oracle Foundation, n.d. Web. 09 Feb. 2014.

"Newton's Views on Motion." ThinkQuest. Oracle Foundation, n.d. Web. 09 Feb. 2014.


All motion on the Earth is linear
The speed at which an object falls is directly related to the mass of an object .
Motion could be considered in two main factions: natural and violent.
All motion in the heavens (outer space) is curved .
Motion continues so long as there is only an applied motion to an object. Removing the motion stops the object.
Reasons Why Aristotle's Theories Were Wrong.
Aristotle's theories were believed to have been right for 2000 years! It doesn't take scientific experiment to prove him wrong. But we must remember during Aristotle's time they believed the Earth was the center of the Universe but Copernicus' theory (which came 2000 years later) tells us why it wasn't this will be discussed after this video on why Aristotle was wrong.

By: Shei-Anne Peets
Why Galileo's theories were correct.
Explaining Newtons Three Laws of Motion
Full transcript