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The Physics of Soccer

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Maddie Rees

on 11 January 2013

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Transcript of The Physics of Soccer

Osiel, Roxann, Maddie, Martha, and Meghan The Physics of Soccer The History of Soccer Pictures of Soccer The idea of soccer has existed for many years and can even be dated as far back as 2500 BC Vocabulary Speed is used when the players are running What two things must be measured to determine the average speed of an object? Works Cited http://worldsoccer.about.com/od/Soccer-History/a/Who-Invented-Soccer.htm It is not certain who invented the sport, but many participated in the development of soccer including the Greeks, Egyptians, and the Chinese Soccer is a simple sport to participate in and requires minimal equipment The goal of soccer is to keep the ball away from the opposing team and to score points by making the soccer ball into the goal. Speed- Velocity- Acceleration- Force- Friction Force occurs when the soccer ball is kicked Friction occurs when the foot of a player comes into contact with the soccer ball the speed of something in a given direction the increase in the rate or speed of an object the push or pull upon an object resulting from the object's interaction with another object Work - the transfer of energy from one physical system to another Momentum- the progress or development that is becoming faster or stronger Distance and time To measure the average speed of a moving person in soccer, you have to calculate the distance they ran and divide it by the time it took them to run The athlete controls their speed by controlling the force they exert in their legs when the ball spins, it causes the velocity of the air around the ball to become less than the air velocity around the bottom half of the ball the rate at which an object covers distance Acceleration occurs when the player speeds up - A force that resists the relative motion or tendency to such motion of two bodies or substances in contact Gravity - The natural force of attraction exerted by a celestial body, such as Earth, upon objects at or near its surface, tending to draw them toward the center of the body As the ball goes up in the air, gravity slows it down until it stops briefly at its peak height; the ball then comes down, and gravity accelerates it until it hits the ground. Newtons 1st Law -An object in motion will remain in motion unless acted upon by an outside force; an object at rest will stay at rest unless acted upon by an outside force. When a ball is sliding across a field and then slows down and stops. Now at first the ball was at rest on the ground, not moving. Once the force acted on it, (a soccer player) the ball is set into motion where Newton's 1st Law takes place. Newton's 2nd Law -The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass, F=m*a This can be seen when you kick the ball, the more force you use to move the ball the greater the acceleration of the ball. Newton's 3rd Law - For every action there is an equal and opposite reaction. Every time you go to kick the ball this law comes into effect, the ball pushes back on our foot as we push against it. Power - The rate at which energy is transferred, used, or transformed. Reason for the ball curving is because the player kicks the ball at a certain angle and with certain velocity (power) Simple Machine - Any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever. The action associated with kicking a soccer ball involves a number of levers working together. Projectiles - An object upon which the only force acting is gravity. When the ball is kicked by the soccer player and it reaches its maximum height before it comes back down, at this point the velocity is zero, the reason the ball didn't go straight and came back down instead is because of it being pulled down by gravity. Collisions - Occurs when two or more objects hit each other, when objects collide, each object feels a force for a short amount of time. When the soccer ball collides into the goal. Whenever you kick the ball because the energy you have transfers to the ball. When you start running while playing soccer and you slowly speed up to go at a constant pace. www.dictionary.com
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