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Newton's Laws Motion Project

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Carrie Zhu

on 18 October 2012

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Transcript of Newton's Laws Motion Project

Ping-Pong Newton's Laws of Motion Project Ping Pong Basic Game Video demonstrating the
Third Law of Motion Second Law of Motion-
F=ma The game of table tennis requires two paddles, a ping-pong ball and table, and a net bisecting the middle of the table. Table tennis is usually played by two players at each end of the table. The game starts with a serve to the other player. The ball must hit the server's side of the table and then the opponents' in order the serve to be valid. The opponent lets the ball bounce only once before hitting the ball to the other side of the net with the paddle. To win the game, the opponent must miss the ball, hit the ball out (not on the table), or hit the ball into the net without making it to the other side. The player gets one point if he or she wins the game. The player wins once they reach the set amount of points in order to win. Tricks and skills such as spinning or slamming the ball can be used in ping- pong as the player reaches a higher level. Third Law of Motion-
Action/Reaction The third law states that to every force, there is an equal and opposite force. To every action, there is also a reaction. First Law of Motion-
Inertia The first law of motion, or inertia, states that if an object is at rest, the forces are balanced, and the object will stay at rest until an outside force acts upon it. The force must be unbalanced if an object is to move. Then, the object will continue to move until an outside force interferes. The video displays many examples of the third law of Newton, or action/ reaction. As each player take their turn to hit the ball, the paddle's forward force hits the ping-pong ball, which is the action. The ball pushes off with an opposite force, heading to the other side of the table, which is the reaction. Also, when the ball hits the other side of the table due to gravity, the table gives an equal and opposite force that pushes the ping-pong ball back up. The second law states that if you place a force on an object, the object will accelerate at the direction of the force. In the picture at the left, the ping- pong is at a state of rest. The force of gravity and the upward force of the table is balanced. In the above picture, the paddle applies force onto the ping pong ball. The ball accelerates in the direction of the force, which is forward. The more force the player applies on the ball, the faster the acceleration will be.A ping-pong ball would accelerate faster than a tennis ball because its mass is less; so acceleration is also proportionate to the mass. In the before picture, the action force is the force of the paddle heading towards the ping-pong ball. The ball poses as an equal and opposite force when it contacts with the paddle. The reaction force is the ball moving forward from the paddle to the other side of the table. In the picture to the right, the paddle creates an unbalanced force which propels the ball into motion. The ball will stay in motion in a straight path until the force of gravity pulls it down and the opponent hits the ball back.
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