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The Laws of Motion
The Laws of Motion
By: Fayo J. Said
What Are The Laws of Motion?
If you're asking yourself, " What are the Laws of Motion?", I have the answer for you! The Laws of Motion are the laws placed to focus and explain many factors of motion which include mass, length, and time. This is because all of the factors are able to be seen and illustrated. The laws are to used to reference the motion of objects in a form of an inertial frame. Sir. Issac Newton, the founder of this set of principles, thought and explained how his findings could be expressed in three laws. Although it took many years of studying the forces of the Earth and motion itself, these three laws of motion are now the basics of modern physics.
What are the Laws of Motion?
How Were the Laws of Motion Discovered?
The laws of motion were predicted to be made after Sir. Issac Newton, the founder of the laws of motion had an apple fall on his head or watched one fall. These are, yet again, theories made, but are not proven to true. Newton had many questions upon his observations. After many trials and error, Newton came up with the theory of gravity, along with the laws of motion. In his work " Principle Mathematica Philosophiae Naturalis" Newton explained how the forces outside affected the movement of objects. Newton's worked focused on factors such as math, length, and time, which are factors that can all be measured and illustrated. Much of Issac's work also refers to the overall motion of objects in a type of inertial frame. Newton then came up with the three laws of motion and explained how they could be explained in the arrangement they are in today. He thought the laws could be how the system was expressed. Although Newton came up with these laws it took him many year of studying math, astronomy, and optics to come up with his work and prove it correct. Today, these three laws of motion are now the basis for modern physics.
How were the Laws of Motion discovered?
The first law of motion states, "An object will stay in motion, and an object at rest will stay at rest unless an unbalanced force acts on it." This explains how an object that is actively in motion, or is moving, will continue to move unless another force is applied causing that object to change direction or stop moving. This causes the object to transfer from kinetic energy to potential energy.The law also confirms that an object that is at rest, or not moving, will to stay at rest unless another force interacts with that object causing the object to move. This cause the object to transfer from potential energy to kinetic energy. Newton's second law of motion states, " An object that has an unbalanced force acting on it will accelerate in the direction of that force." This means if two forces are acting an each other, but if the two forces completely cancel out, there will be no motion. But, if one forces overpowers the other force, the forces will not be canceled,or balanced, and due to the increase in one of the forces, there will be an increase in one of the forces will over power the the other causing an increase in acceleration, the increase of speed, in the direction in which the object is headed. Newton's third law of motion stated, " For every action there is an equal and opposite reaction." This describes how any force applied to an object will release the same amount of force on the object that cause it to move. So when a force is applied, an equal amount of force will exert onto the object of force because there is always a pair of forces acting upon the two interacting objects.
What does each law represent or explain?
There are many, many ways we use the three Laws of Motion. We use them every day and don't even think about it! Some examples of how we use the first law of motion everyday is simply just by kicking a still ball. The ball was not in motion, but you put that ball into motion by applying a force to the ball, which is referring to the first law if motion. Another example of the first law of motion is throwing a ball. This is because when you throw a ball the ball will most likely go up into to the air and will fall by you catching it. The ball was not in motion until you threw it into the air, and the ball is in motion but is stopped when it comes falling down because of the opposing force, gravity, is slowing the ball, bringing it to a stop. Both of these situation support the first law of motion stating, " An object at stay in motion, and an object at rest stays at rest unless acted upon by an unbalanced force.."
What are some examples of how we use the Laws of Motion in our daily lives?
Examples of Newton's Second Law of Motion
"An object that has an unbalanced force acting on it will accelerate in the direction of that force."
Example 1
Example
1
One example of the second law of motion is sliding down a snowy hill. While your sitting on the top of the snowy hill, there is no motion because the forces, which are gravity and the force of the ground, are equal they are canceled out. When you start to travel down that hill the forces quickly become unbalanced and gravity takes over and you begin to accelerate,or increase in rate or speed, in the direct angle in which you are gliding.
Example 2
Example
2
One more example of the second law of motion is trying to move a truck. When you attempt at first and the car dies not move that means the forces are balanced and canceled out or the trucks mass is over powering your causing no movement. Once you have enough strength to move the car, the car will slowly move forward because more of your mass and force is applied causing you to overpower the truck's mass and force causing you to be able to move the truck which will slowly gain acceleration and speed, causing the truck to move faster.
An example of Newton's third law of motion is bouncing a ball. As the ball is thrown to the ground, it releases a downward force. The ground will then receive the same amount of force and release an upward force, causing the ball to continue to bounce. This happens after all the forces are transferred and released upon the opposing forces many times. Also, another example of the third and final laws of motion is swimming. When you are in a start position and kick if the sides of the pool you are putting force upon that specific object, the side of the pool will release the same amount of force causing the swimmer to take a head start as she/he moves forward due to the amount of the released force of the pool side.
Example of Newton's Third Law of Motion
" Every action has an equal and opposite reaction."
Sources
My sources were
https://www.crashcoursekids.org their YouTube channel at
https://www.youtube.com on the Laws of Motion.
My other resources included: http://kahnacademy.com
https://www.sciencing.com.