Physics of Lifting the Ball

The technique for lifting a field hockey ball is a lot like catapulting the ball into the air. The stick is placed underneath the ball, while your hands simultaneously push the stick up and down, making the ball fly through the air. The force that your top hand puts on the stick is transfered to the ball, sending it upward into projectile motion. The more force being put on your stick from your arms, the ball overcomes gravity more. For extra force, along with the pushing and pulling motions of the arms, the legs can be added. For maximum force on a lift, your legs should be bent at the knee, and your arm should be bent. There are rules in field hockey preventing you from lifting the ball a certain height when people are near, so a field hockey player should always be conscious of how much force they are exerting on their lift. 

2 years ago

Rules and History of Field Hockey

Rules and History~

  • Field hockey was thought to be found in Ancient Greece
  • Beginning of the 1970’s artificial turf began to be used
  • 1886 was the year that The Hockey Association was founded
  • Only the flat side of the stick may be used to hit the ball
  • You cannot kick or step on the ball
  • When attempting to hit the ball, you may not swing the field hockey stick above the shoulders
  • No checking or physical contact in women’s field hockey
  • There are only 11 players permitted on the field at one time, subbing is allowed
2 years ago

A video of a typical field hockey game

2 years ago

The many ways to hit the field hockey ball.

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Annie Prevas speedily dribbling the ball down the field!

2 years ago

This is an explanation of the dimpled field hockey ball

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Smooth Field Hockey Balls vs. Dimpled

During a typical field hockey game the ball becomes air born frequently. A smooth field hockey ball will be slowed down by the friction of air moving over the plastic. To address this issue a dimpled field hockey ball was created. When the dimpled hockey ball moves through the air it catches air in its dimples that form air pockets. Then when the ball becomes airborn it is slowed down less because the friction created by air moving over pockets of air is less. This allows for the ball to be driven and lifted much farther.

2 years ago

Field Hockey vs. Ice Hockey

Field hockey and ice hockey are very similar according to the basics but when compared in similarity of physics, they differ from each other. Ice hockey has less friction because it is played on ice, which is flat. Therefore there is less friction working against the forces of the skates gliding over the ice or the puck sliding. The low amount of  friction on the ice allows for skates to glide on top of the ice, without low friction the game of ice hockey would not even be possible. WIth field hockey, the friction provided by the blades of the grass can interfere with the speed of the ball and field hockey has always been a slower sport. If someone was to exert the same force upon a puck on ice and a ball on turf, then the puck would go farther because the blades on the turf would slow the ball down greatly. 

http://en.wikipedia.org/wiki/Hockey

2 years ago

Water on the Turf

Field hockey not only uses a turf field with shorter synthetic grass blades to reduce friction, but also uses water. Water is sprayed on the field before a hockey game or practice  to douse the blades.  Water serves as a lubricant on the field that reduces friction between the ball and  grass blades, this allows the ball to move smoothly. This is for the same reason that field hockey turf fields have shorter synthetic grass blades.

Source: http://en.wikipedia.org/wiki/Field_hockey

2 years ago

Friction on Artificial Turf vs. Grass

Artificial turf is becoming more popular than grass partially because its easier to maintain and has changed sports like field hockey for the better. The turf used for field hockey differs from the turf used for other sports. Each blade is shorter than a blade used for the other fields because the shorter the blade is, the faster the ball will move. Due to reduced friction, the ball is slowed down less and the speed that the ball moves during the game has increased. This has changed the game of field hockey significantly because it has become a much faster sport requiring faster and more conditioned players. The field hockey stick has been adjusted in order to accommodate new techniques that emerged after the creation of turf, such as reverse stick trapping and hitting.

Source: http://en.wikipedia.org/wiki/Artificial_turf#Field_hockey

2 years ago