What are the physics of hockey

Force, Impulse, Collision

Reflexes and Reaction Time

More than just a physical game, for scientists, it’s a showcase for physics on ice- especially when it comes to the slap shot. Also that in hockey game is known for hits or checking but the hardest hits are slap shots, and that a slap shot is the fastest projectiles in the whole entire winter Olympics and is close to the fastest moving projectile in any moving object. This is a perfect example of kinetic energy because it is energy built up by the body. But when taking a slap shot putting 100 pounds or more of force on the stick while shooting any shoot but a slap shot generates the most power. Some things done when shooting a slap shot is that your stick touches the ice before you even attempt to touch the puck.

A goalie faces the most action and pressure then all NHL positions.NHL goalies have lots of equipment designed to help stop pucks, but their most valuable tool is their brain. Their brains spark the nerves impulses that travel to the limbs,allowing the goalie’s to see and react quickly enough to make a save. Being a goalie can involve many different concepts, but most it is a read and react situation.Scientists can figure out the amount of reaction time it gives a goalie by dividing the distance of the puck away from the goalie by the speed the puck travels. The blue line to the net is 60 feet and a average wrist shot is 90 mph which would give the goalie a .45 second reaction time.

A force is a strength or energy as an attribute of physical action or movement that connects to hockey by almost everything like checking ,shooting ,passing , and skating. Also a impulse is a driving or motivating force;an impetus, which relates to hockey by shooting when you drive the stick into the hockey puck to shoot the puck as hard as you can. It can also relate to hockey when you try to hit or drive somebody into the boards. Which leads me into my next thing to discuss. The last a final reason is that a collision is an instance of one of the moving objects or person striking violently against another. Which relates to hockey when you are checking someone into the boards

Newtons Three Laws

Mass, Volume, Density

Newtons Three Laws apply’s to any moving object. The first rule is that a object at rest stays at rest unless acted upon a force. Another rule is that if a object has a change in velocity then the net force,necessary to cause this acceleration is equal to the mass of the object times its acceleration. The final rule is that when one body exerts a force on a second body,the second body simultaneously exerts force equal in magnitude and opposite in direction on the first body .

The ice surface at a hockey rink is only about one inch thick. The height of the water when being made expands when it freezes. Below the ice and concrete layed down below the ice, their is a cooling system so that the ice rink itself is warm but the ice is cold enough to keep the ice frozen. The ice is actually frozen then is painted over to make it look white then they paint the lines and logos over the ice. The volume and mass can be figured out by knowing the rink is 200 feet long and 85 feet wide. The ice takes about 10600 gallons of water. The formula length*width*height, identifies volume. This would make a ice rinks volume 43.6m^3.

Kinematics

NHL players can reach up to 30 mph !This all relates to kinematics which are the branch of classical mechanics, helps describe a players movement across the ice by defining his position, velocity and acceleration which are the three main parts to kinematics.Position is the location of the player on the ice at a given moment. Velocity is a players speed and direction. Acceleration is the change in a players speed and or direction over a period of time.

Slapshot Physics

What are the physics of hockey

Physics of Hockey

The physics of hockey can involve many concepts including, kinematics, projectile motion, reflexes and reaction time, geometry,mass ,volume, density,force,impulse, collision,vectors,statics, averages and Newton's three laws of motion. Also the separate physics of a NHL player's slap shot will be focused on in this presentation.

Statics and Averages

Geometry

Projectile Motion

Vectors

Hockey is teaming with geometry, specially plane geometry like the angle a hockey pucks hit the boards the same angle it will bounce of the boards..One reason is that behind the net it is hard to score and their is a trapezoid right behind the net that is called goaltender’s trapezoid. To add on, in the neutral zone or in other words the middle zone it is a quadrilateral and a parallelogram and a rectangle with all right angles. Finally their are angles everywhere on the ice rink like around the boards where the boards and red lines value blue lines intersect.

Projectile Motion is the change in position of an object after its propelled into the air. Unlike a slap shot, an NHL wrist shot isn’t for brute power. It’s about precision putting the puck in the exact location or spot where the goalie can’t reach. A wrist shot is also a perfect example of what’s known in physics as projectile motion. When a puck is spinning in the air and has projectile motion it also has angular motion which is the change in direction of an object around a fixed point or axis.Also the more angular motion the more gyroscopic effect that eventually leads up to being a projectile motion. Another thing to know is that a gyroscopic effect is a device containing a disc on an axis that hat can turn freely in any direction so that the disc resists the action of an applied couple

Being a top goalie in the NHL, isn't just skill it also requires a firm grip on the numbers. A statistic is a measurement of collecting data, and an Average is a number expressing the central or typical value in a set of data, in particular the mode, median, or (most commonly) the mean.. . Some of the most important stats for a goalie is their save percentage, which is the amount of saves made out of a certain amount of shots. Also their GAA(Goals Against Average) is a important stat that is the average amount of goals scored in a game.

NHL players are celebrated for their ability to pass the puck quickly and accurately as a play moves from one end of the ice to the other. Also that these pinpoint passes from the players,both magnitude and direction, are perfect examples of velocity vectors. Velocity vector is the rate of change of the position of an object. The magnitude of a velocity vector gives the speed of an object while the vector direction gives it’s direction. By adding your vectors direction and speed you will find something called the resultant which is the actual velocity the puck traveled to get to the location.Also that depending on the length of the vector will depend on how fast it gets to the location or target aimed for.