KICKING A SOCCER BALL

There are plenty of physics that go into kicking a soccer ball. It applies to Newtons First Law, Newtons Second Law, Newtons Third Law, Momentum, Magnus Effect, Friction, Projectile Motion.

Untitled Slide

FRICTION

• Friction is the resistance to motion of one object moving relative to another.
• Friction only occurs when the ball is rolling across the ground when you kick a soccer ball.

NEWTONS FIRST LAW

• The first law of motion is called the Law of Inertia. It states that “any object at rest, will tend to stay at rest, and any object in motion, will tend to stay in motion unless acted on by an unbalanced force.”
• Newtons First Law occurs when the ball is at rest, and then the player uses there foot to kick the ball.

NEWTONS SECOND LAW

• Newton’s second law states that “The change in velocity (acceleration) with which an object moves is directly proportional to the magnitude of the force applied to the object and inversely proportional to the mass of the object.”
• This occurs when the soccer ball curves or when it is kicked.

NEWTONS THIRD LAW

• Newton’s final law of motion states that “for every action, there is an equal and opposite reaction.”
• This occurs when the player kicks the ball and the ball pushes back. The reason the ball doesn't stay in the same place is because we have more mass then the ball.

MOMENTUM

• Momentum is the velocity of object times its mass.
• Whenever we kick the ball the momentum transfers over to the ball.

AIR RESISTANCE

• Air resistance is the force of the air pushing an object back.
• Air resistance occurs when the ball is kicked in the air or on the ground which causes the ball to eventually come to a stop.

GRAVITY

• Gravity pulls two object together.
• Gravity pulls the ball down to the ground.

EVIDENCE

• http://www.livescience.com/37161-what-is-friction.html#sthash.YHrIb5jp.dp

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