Formula 1 Car Terminology Aerodynamics – The study of the movement of a body (car, airplane, etc.) through the air. Friction – can be thought of as a “backward push” against the tires and car. In Physics (the study of forces) the definition as a “push” or “pull” Also, the smaller the front of your car the less friction it will encounter as it pushes the air out of the way. Turbulence – is the “swirling about” of the air molecules. We want to make our cars very smooth to minimize this turbulence. We would like to have what is called “laminar” flow of the air (air that follows the shape and contour of the car” Mass – The size of the car – remember this is NOT weight but it is connected to weight. This relationship can change based on the material being used. Force – can be measured as a “weight” such as pounds or as “mass” such as kilograms. Acceleration – the rate of change of velocity with respect to time. Velocity – quickness of motion : SPEED Newton’s First Law – A body in motion will stay in motion until acted upon by an outside force. Newton’s Second Law - The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. -- In terms of an equation, the net force is equal to the product of the object's mass and its acceleration. Fnet = m * a Newton’s Third Law – For every action there is an equal but opposite reaction. Frontal Area – is crucial to the speed and reduction of friction. The larger the front nose of the car…the slower it will go because it must “push” that air out of the way. Better to slice through the air than to “push” it out of the way. Base Drag – This is the “turbulence” caused at the back of the car as the air attempts to “fill the void” left by the car. We can control the “filling of the void” by our design. We can fill the void we created with the car by intentionally bringing the air molecules back together with our design. Boat Tail – you have to let the “inrush” of air work to your advantage. This comes from boating….principles are very similar….both are fluids. This is the cutting of corners at the back of the boat to bring the air back together just like when you part the air at the front. Formula 1 Car Terminology Mathematics Meets Formula 1 Racing Where the RUBBER meets the ROAD! Acute Triangle – A triangle that has each angle measuring less tha 90 degrees. Obtuse Triangle – a triangle with ONE angle measuring MORE than 90 degrees. Coordinate plane/graph – a two dimensional system in which the coordinates of a point are its distances from both a horizontal and vertical line called the axes. The pairs of numbers are called ordered pairs. The origin is 0,0. Surface Area – The sum of the areas of all of the faces of a 3D figure. Compound Event – An event made up of two or more simple events. Theoretical Probability – A statement of an event without doing an experiment or analyzing data. Experimental Probability – A statement of probability based on the results of a series of trials. Permutation – Possible orders, or arrangements of a set of items. Placing items in a different order results in a new permutations (or set of results/outcomes). OUR SOFTWARE: You do not need to memorize theses. ProDesktop – the 3D software package we use to create our model of our proposed CO2 car. QuickCam 3D – the software used to create CNC machining tool paths from 3D models or 2D images. VR CNC Milling – the software package that allows us to edit and control CNC files either virtually or real-time using the Denford CNC 3D Router. Virtual Wind Tunnel - A chamber through which air is forced at controlled velocities in order to study the effects of aerodynamic flow around airfoils, scale models, or other objects.