Introduction
Physics define the rules by which we live our physical existence. Many of us go about our day to day lives without any true understanding of the Laws which govern how we interact with our surroundings. Physics is our way of making sense of the forces which act upon us and shape the way we accomplish even the most menial of tasks. From walking to driving to playing a game of catch, anyone can see physics in action.
A computer game programmer must take a special look at the forces at work around us. The programmers who code flight simulators, first person shooters, and similar games, often need to model their virtual world as closely as possible to our own. In this project we will look at the first person combat simulator called "Tribes™", by Dynamix. We will focus mainly on projectile motion, but we will also discuss the challenges the programmers had in computing ranges for projectiles, friction, and momentum. Also touched on, will be how they succeeded and failed in their efforts.
Challenges
In Tribes™, the programmers had to create an environment for the players. The challenge is to model our real life Laws of physics as accurately as possible. However, programmers are not physicists and it would take a super computer to accurately model all physics in a real world environment. This environment includes a variable gravity. This was important to game play in that the programmers could now make different worlds for the players to fight in. A planet of different mass will obviously have a different gravity. The following equation shows the horizontal range of a projectile, R = (V²o / g) * sin(2Ø) (Halliday, et al 60-64). Where R is the range, Vo is the initial velocity, g is gravity, and Ø is the angle the projectile is fired at. It is easy to see from the equation that a change in gravity will affect the total horizontal range achievable by a projectile. An interesting note is that a 45 degree angle will provide the maximum horizontal range for the projectile, no matter what the force of gravity is. (Assuming gravity does not equal zero).
We are neglecting air resistance in our calculations, as did the makers of Tribes™. When the programmers did this however, they got some unexpected, yet fun results. While projectile motion was not affected greatly, a person flying in the game could reach insane speeds, as there was no terminal velocity.
First-person shooter is a video game genre centered on gun and projectile weapon-based combat through a first-person perspective; that is, the player experiences the action through the eyes of the protagonist. The first-person shooter shares common traits with other shooter games, which in turn fall under the heading action game. From the genre's inception, advanced 3D or pseudo-3D graphics have challenged hardware development, and multiplayer gaming has been integral. After masses of video game evolution, along came the call of duty series.
The Reason that people need a tank when they play paintball is because you need a way to force the paintballs out of the gun and this cannot be achieved effectively by just using a spring. What they decided to do was to fuel the paintballs by pushing them with a gas. The way in which they did this was to put the gases, either Oxygen, Carbon Dioxide or Nitrogen under extreme pressure until they turned into a liquid and once they are in a liquid form they can be blown into a tank which probably looks something like this.
The purpose of the projectile lab is to test the validity of the law of conservation of energy. The application of this law to our everyday lives is a surprisingly complicated process. Conservation of energy states that energy cannot be created or destroyed, but that it can be transferred from one form to another. Consider the projectile lab from document A that this essay is based upon. In an ideal experiment, the projectile is isolated from everything except the gravitational field. In this case, the only force acting on the particle is gravity and there are only two forms of energy that are of interest: the energy of the particle due to its motion (defined as kinetic
We don’t have to explain about how do the objects works because we know the purpose of the objects are designed like that. For example, we know the purpose of the hair dryer which it is use to blow dry our hair. Therefore you do not need any physics principle to explain to use it, in fact you just have to press the start button to use the hair dryer.
Many people are amazed with the flight of an object, especially one the size of an airplane, but they do not realize how much physics plays a role in this amazing incident. There are many different ways in which physics aids the flight of an aircraft. In the following few paragraphs some of the many ways will be described so that you, the reader, will realize physics at work in the world of flight.
Physics is everywhere. Consequently, physics is a part of sports and more specifically, hockey. As the scientific discoveries progressed with time, so did the advancements in the sport of hockey, reflecting on how important and influential science truly is. Physics takes part in the ice, the skates, the protective gear, the shots, goaltending, and all other aspects of ice hockey.
Gravity is defined as the force of attraction that causes objects to fall toward the center of the earth(“Gravity”). Without gravity, the world that we know would not exist. Gravity is the reason why objects are on earth and not floating in space. Although some discoveries have been made about gravity there are still numerous unanswered questions. There are several scientists who are well known for their contribution to science, these scientists include Aristotle, Galileo, Kepler, Newton, and Einstein. Over a course of several hundred years, scientists’ views about gravity has changed. No one really understands how gravity works, but people have learned about the effects of gravity. It started off with a philosophy point of view, and it then moved to a scientific methodology view, and then to scientific theory view.
A famous saying for many golfers is, “golf is the most enjoyable walk that can be had in two hours”; even though many people disagree with this and say it is, “the worst walk in two hours.” Still, over time many people have had the opportunity to play, learn, and enjoy the beauty of golf courses around the world. Many golfers know that the game of golf requires mental and physical aptitude with hours of practice in order to be proficient at the game. Furthermore, since golf is a sport played in the physical world, the entire game can be explained and actually improved by many principles in Physics. Understanding the principles of Physics in the swing of the golf club, golf ball, collision of the golf club with the golf ball, flight of the golf ball, and putting can help a player shave off points to make the “enjoyable walk” more tolerable.
There are a few different physics engines that programmers use now for their games. There are 2 main physics engines that programmers use: Havok, and Math Engine.
Physics can be found in all aspects of our lives and the world around us including the activities in which we find the most enjoyment. They may not be noticeable to the naked eye or even to our senses but they are there and when we become familiar with the concepts of physics then we began to ‘see’ physics everywhere.
Interestingly enough, one can actually change their "terminal" velocity. For instance, if Joe were to jump out of the plane and position in the prone, spread eagle position, his surface area would be at his maximum. Thus the terminal velocity he would reach would be lower than the terminal velocity he would reach if he dove from the plane head first. When Joe transitions from spread eagle to the head first position, his surface area decreases, thus allowing for an increase in speed.
In conclusion, physics is involved in all things around us. Whether in a classroom, in a car, or playing basketball physics concepts can be applied to the action. Although it is not very practical for a person to stop and calculate the angle, velocity, and position, the use of physics does make it understandable and possible. As much as the physics of basketball seems insignificant and ludicrous, to calculate the principles are in fact very valuable to a player without them even knowing they are doing physics.
Volleyball is a sport that includes many elements from physics. Next time you are playing or watching your friend or family member play volleyball think about the elements in physics involved. Without gravity,work velocity, acceleration, work,and the Newton's 3 laws of motion, volleyball wouldn’t be the same. In this paper I will explain how you can use work, velocity, gravity and acceleration along with newton's three laws of motion
Physics can be used to explain a lot of things. In this paper I described some basic concepts in physics that are relevant to basketball, particularly the three main parts of basketball, shooting, dribbling and passing. So the next time you are out shooting some hoops just think of all the physics that are being applied and you could be one step away from being a physicist, and have fun.
Useful for the military, projectile motion can now be used for a number of weapons; which is when an object (like a bullet or cannon) is thrown-projected- and mov...