top-rated free essay

Three Laws of Motion

By pianoplayer12 Jan 04, 2011 596 Words
Isaac Newton was born on December 25, 1643 and was born in Woolsthorpe, near Grantham in Lincolnshire, England. He went to Cambridge University in 1661 and became interested in math, physics, and astronomy. Newton received a bachelors and masters degree. (online) What he is most famous for is developing his three laws of motion. The first law is that an object in motion tends to stay in motion with the same speed going in the same direction unless acted upon by an unbalanced force. An object at rest tends to stay at rest unless acted on by an unbalanced force. His second law states that acceleration is produced when a force acts on mass. The greater the amount of mass is the more force is needed to accelerate the object. His third law states that every action has an equal and opposite reaction (online). There are many everyday examples, and more complex explanations of each of these laws.

Isaac Newton’s first law, an object in motion tends to stay in motion with the same speed going in the same direction unless acted upon by an unbalanced force. An object at rest tends to stay at rest unless acted on by an unbalanced force, is also known as “the law of inertia.” Galileo Galilei developed the concept of inertia years before Isaac Newton was born. “The law of inertia” states that every moving object possesses inertia which keeps it moving unless an external force acts upon it. Basically this law means that all objects naturally want to stay in motion. Objects avoid change in their state of motion unless an outside force causes it (Encyclopedia of Earth and Physical Sciences, 2009)

The second law of motion developed by Isaac Newton states that acceleration is produced when a force acts on mass.” The greater the amount of mass, the more force needed to accelerate the object.” (online). This law is often represented by the mathematical equation, F=ma (force equals mass times acceleration). This means that an object with more mass takes more force to move the same distance than an object with less mass. As force acting upon an object increases, the acceleration of the object increases. As the mass of an object increases, the acceleration decreases. The direction of the acceleration is in the same direction as the applied force (Encyclopedia of Earth and Physical Sciences, 2009).

Isaac Newton’s third law states that every action has an equal and opposite reaction. Within this interaction there is a pair of forces acting on the two interacting objects. The size of the first force is the same as the size of the second force. Also, the direction of the force on the first object is opposite to the direction of the force on the second object. In other words, the forces are equal in size, but opposite in direction. “Whenever an object pushes another object, it gets pushed back in the opposite direction with an equal force” (online). An example of this would be if a bat hits a baseball, the force of the bat would be the same as the force of the baseball. (Encyclopedia of Earth and Physical Sciences, 2009).

Isaac Newton’s three laws of motion have revolutionized the world. Newton was knighted in 1705 by Queen Anne because of the brilliance of his ideas. Isaac Newton died in 1727. We know now that the ideas of Isaac Newton have laid the foundation for modern science. Newton is now remembered as one of the most accomplished scientists and mathematicians of all time.

Related Documents

• Newton's Three Laws of Motion

...published what are known today as Newton's three laws of motion. If these laws didn't exist, motion and life would not exist. His three laws are accurately relative to what "normal" speeds are on earth. Newton's first law is most commonly referred to as the law of inertia. The law states that an object that is at rest will stay at rest un...

• Newton's Three Laws of Motion

...Sciences. He was elected to Parilment, then appointed a warden, and finally, President of the Royal Society. Newton was a master of science and mathematics. He discovered calculus, before Leibniz' became popular. Perhaps Newton's most popular discovery, though, was gravity. As the story goes, Sir Isaac Newton was resting under a tree one day in ...

• Laws of Motion

...Newton's Laws Name: Inertia and Mass Read from Lesson 1 of the Newton's Laws chapter at The Physics Classroom: http://www.physicsclassroom.com/Class/newtlaws/u2l1a.html http://www.physicsclassroom.com/Class/newtlaws/u2l1b.html MOP Connection: Newton's Laws: sublevel 1 1. Inertia is 2. The amount of inertia possessed by a...

• Laws of Motions

...Newton’s Laws of Motions Scrapbook Basic Physics Honors Newton’s 1st Law of Motion An object stays in constant velocity until and unbalanced force is exerted upon it. [pic] ~The water of the waterfall will keep falling due to gravity. ~The papers on the wal...

• Newton's Laws of Motion

...NEWTON’S LAWS OF MOTION Newton's First Law of Motion An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. There are two parts to this statement - one that predicts the behavior of stationary objects and the other that predicts the be...

• 3 Laws of Motion

...Christian Hernandez January 25, 2010 Physics Mr. Savage The motion of an airplane or helicopter through the air can be explained and distinguished by physical principals discovered over three centuries ago by Sir Isaac Newton, who worked in many areas of mathematics and physics. Throughout recent science history, three of the most importa...

• Newton's Law of Motion

...Newton’s Law of motion Newton’s first law of motion: Law of inertia Newton’s second law of motion: Law of acceleration Newton’s third law of motion: Law of interaction Submitted to : Lerrie P. Munsod Submitted by : Jan Allen Karl O. Dula IV-St.Paul December 14,2012 Project #2 Law of Inertia A person sitting...

• The Laws of Motion: Homework Problems

...﻿HOMEWORK PROBLEMS Chapter 4: THE LAWS OF MOTION PART-A: Hand in your answers in class on scantron on Wednesday 22 September-2010. The questions have been numbered so you can use the back side of an older scantron. Write your name, class (1401) and HW # 4 on the scantron. 1. A horizontal force of 95.0 N is applied to a 60.0-kg crate on a r...