A phenomenon under investigation that represents a change in motion is a rubber band powered vehicle. In order for this vehicle to successfully work, the mass of the car must be light, but heavy enough to hold the one pound load of baking soda. My car’s mass was a total of approximately 0.4 kilograms or about 400 grams. With a lighter mass, more unbalanced forces can act on the car, moving it forward. The unbalanced forces that act on this car are the tension in the rubber band and the spoiler. Tension in the rubber band is the main motor for powering this car. Because it is wrapped around the axle of the car, the rubber band has the ability to coil about fifteen rounds, creating maximum tension allowing it to propel itself forward. As a result, …show more content…
The motion of the rubber band car is measured by distance in meters where speed is not part of the criteria. In addition, the mass of the phenomenon is measured in kilograms or grams. The forces that act on the vehicle is determined by the amount of trials. By removing certain objects or the further coiling the rubber band, we can determine what are the factors that contributed to the amount of distance covered by our rubber band car. To determine the independent and dependent factors of the rubber band powered car, we must keep some parts of the design constant and alter parts of the design that are not necessary. For example, because the car is powered using one rubber band, the independent variable is the size 33 rubber band. The dependent variables are the tension within the rubber band and the distance traveled. Therefore, the amount of times the rubber band is coiled, increasing the tension, would result in the distance the car traveled. However, the dependent variables are dependent upon the car’s mass and rubber band used. Moreover, the controls during the experiment would be the car’s mass, surface, structure, and wheels. Keeping the controls constant would bring out the best of data for our rubber band car. Lastly, the number of trials during an experiment would be based on the first trial. If the car is successful during its first run, then we would find ways to alter the design to increase its speed and distance covered. Because of this, our car made it to the finals, which was a total of three
The faster the wheels spin, the faster the car will go. Our project requires our car to go at least 3 meters. Our initial trials were successful because our car went 7,8, and then 9 meters. The car went 7 meters in 8 seconds with a speed of 0.875 m/s. It went 8 meters in 10 seconds with a speed of 0.8 m/s. It finally went 9 meters in 12 seconds with a speed of 0.75 m/s. It is what makes the wheel spin instead of just sliding on the ground.
The tennis ball is the constant variable factor (the variable that is kept the same, to make the investigation valid). The ball will dropped from increasing heights (cm-25, 50, 75,100,125,150,175,200) and the bounce of the ball will be measured. A sample size of 3 results will be taken from each height the ball is dropped. The same investigation will then be repeated, but one of the independent variables will be changed.
“How about we use a pulley system with a weight at the end to push the car forward?” my team member suggested. “Or we could use a hammer launcher,” I proposed. We went back and forth, contemplating different methods. We faced trials, tribulations, and troubles in the design process. Building and perfecting our designs took weeks, but our coach guided us throughout the process and encouraged us to “Never give up!” We researched the effects of different factors that could potentially come in the way of our success and analyzed all of the device possibilities. Even when research got arduous and we couldn’t agree on something, we never gave up on our dream of placing in the regional competition. This was one of the hardest challenges I’ve ever faced in my Science Olympiad career, but our unfaltering dedication and our belief in success helped us persist in the face of setbacks. Once we finished our plan, we began to build the device. It was exhilarating to see our plan come to
distance of the toy car, may well consist of; the mass of the car, the
How does Kya show us who Deliha Owens is throughout this story? The story, Where the Crawdads Sing, is quite intriguing with everything that happens during it, but Dehila Owens has used her life as an example of who Kya is. This is shown throughout the novel, the film, and other interviews and stories she tells. Deliha Owens heavily used her own life experiences to influence the narrative and themes within the book. In the novel, Kya’s deep understanding of nature closely mirrors Owens’ childhood.
The dependent variable that will be measured is the height at which the ball bounces back. The control variables that will need to be kept constant if the results are to be as accurate as possible are. 1. What is the difference between a. and a. The weight of the ball; we will use the same ball throughout the experiment to ensure that the results are as accurate as possible.
7 the data we obtained from BMW with research in the library and on-line. We then developed a
Newton’s 2nd Law of Motion states that acceleration is directly proportional to net force when mass is constant. This experiment dealing with variable forces has as its objective the verification of this law. In this experiment this law is tested for verification in straight forward way. Through the use of a Force Sensor and an Accelerometer, data collection of observations and measurements that a force exerts on a small cart along with the cart’s accelerations are to be determined. The sensors’ measurements will be employed to give meaningful relationships between the net force on the cart, its mass, and its acceleration under these conditions. The resultant measurements revealed will verify and determine the force and acceleration relationship as stated by Newton.
The average driver doesn’t think about what keeps their car moving or what keeps them on the road, but that’s because they don’t have to. The average driver doesn’t have to worry about having enough downforce to keep them on the road or if they will reach the adhesive limit of their car’s tires around a turn. These are the things are the car designers, professional drivers, racing pit crews, serious sports car owners, and physicist think about. Physics are an important part of every sports and racing car design. The stylish curves and ground effects on sports cars are usually there not just for form but function as well allowing you to go speeds over 140 mph in most serious sports cars and remain on the road and in reasonable control.
This experiment could have been more accurate if the angle of the slope could have been lowered to stop the trolley from accelerating. The experiment could have also been improved by taking greater care in making sure that the weights didn’t fall off of the trolley after they collided with the trolley. Better weights should have been found for the 1.5kg as the ones used had to be tied together to reach the sufficient weight, thus making them more likely to fall off the trolley. Conclusion: The hypothesis was proven correct for the 500g weight, however, the hypothesis was not proven correct for the 1kg and 1.5kg weights as the momentum before the collision did not equal to the momentum after the collision.
This paper is a look at the physics behind car racing. We look look at how we can use physics to select tires, how physics can help predict how much traction we will have, how physics helps modern cars get there extreme speed, how physics lets us predict the power of an engine, and how physics can even help the driver find the quickest way around the track.
HIS 221: Humanities in the World since 1300 A.M. Riotto A World History of Rubber Writing Assignment After reading the book A World History of Rubber written by Stephen L. Harp the way I see things around me have changed forever. I only paid my items with money but someone before I was able to pick my items from store paid higher price for it. The price hidden behind objects of our daily usage can vary from sweat, blood, body parts, freedom, family, hunger, terror, and often death not just one person but whole community. One shipping company clerk Morel 1900’s by revising accounting books at port in Congo realized that what Belgians are taking from Congo is much more than just rubber, diamonds, and ivory.
Brakes may be one of the most essential inventions in the developments of automobiles. Clearly, nothing can surpass the breakthrough of the wheel, but the brake system was a catalyst to the further developments of cars. The brake system has also evolved greatly throughout the years. Once considered one of the simplest parts of a vehicle, brakes have become one of the most complicated components in a vehicle. The scientific explanation behind a brake system is very rudimentary. Friction permits the concept of braking to occur.
Cars are the ultimate symbol of independence and individualism. They offer more than freedom. No other man made creation but car fulfills a man’s ego. Technology has been the evidence of how cars have evolved for about more than a century now. From a first car packing a single cylinder 958cc, 0.75hp engine to today’s most powerful 8000cc W16, 1300bhp Veyron. We live in such an engineering savvy era where even an increase of few grams in a vehicle’s weight means going back to the drawing board to get unerring dynamic performance. And for these exuberant reasons, mechanical engineering was a mere choice rather than a chance for me.
Law two can be used to calculate “the relationship between an objects mass (m), its acceleration (a), and the applied force (f) is F= ma.” This formula is used in all of the above components in the car.