Purpose/problem : The purpose of this experiment was to help students grasp two main ideas. One problem was that we were trying to investigate which forces caused specific types of accelerations and velocities. The second purpose was to learn how to determine acceleration from experimental data. This experiment helped me and my partner figure out and better understand these questions.
Introduction : Before starting this experiment, I knew many key ideas that played a part in the building of the balloon car. In this experiment, you would need to know what force, acceleration, and velocity is. Force is an interaction between two objects that results in a push or pull. Acceleration is the rate of change of velocity. Lastly, velocity is the
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I figured that the lighter I made the balloon car, the faster the velocity would be. So following this idea, I thought mostly light materials should be used for this experiment. I began by trimming two straws and stuck them to the bottom of the car base. The car base was a pink foam rectangle. After I taped the straws onto the bottom, and threaded a wooden skewer through each one. Then i cut out four cardboard wheels and sanded the edges of them. I then placed one on each end of the skewer and taped it down. This way, the wheels can roll and help the car go faster. I attached the balloon to a straw and sealed the mouth piece with tape. This helped me inflate the balloon and also created a shoot for the carbon dioxide from the balloon so the car could propel forward. I taped this part onto the car and then I tested it with my lab partner. It worked pretty …show more content…
Also, to learn how to determine acceleration from experimental data. In this experiment, we built air balloon powered cars and measured how long they could roll and how fast they accelerated. We had to include many factors while building our cars. For example, air resistance, force, and friction. I designed my car using the idea that the lighter and smaller the car, the farther and faster it will go. My partner and I used many tests to see if the design worked. To test if the wheels work, we rolled it across the table and the car moved fast and rolled far. This meant the wheels were working. Once we got the balloon on, we tested it multiple times to see if it would reach the two meter mark. Our car in the class test was ok. Our time was fast and the car accelerated quickly. It gained speed at the end. Our distance was not too far past the 2 meter line. Our velocity also was not the fastest. If I did this lab over, I would have made the body of the car smaller because it would have made the car’s velocity go faster. Also, I should have used CDs for wheels instead of cardboard because then the car would have rolled faster. An error in this lab was that our car’s wheels were not in place so they slid around in the straw socket. This made the wheels catch on the side of the car and made the car slow
to get an idea of how I would do my real experiment and what apparatus
The purpose of this lab was to discover how diverse the parking lot at Bunker Hill High School could be, by finding out the Shannon Wiener biodiversity index of the parking lot. The parking lot was used because it does not have much immigration and emigration of the cars. Using an actual ecosystem in the wild would be hard to control, what is immigrating and emigrating out of the experiment. The experiment shows how diverse the cars were, and this can show how diverse an actual ecosystem was during that time of the experiment. This then tells that diversity does matters because if everyone had the same kind of car, then no one would be different. However, if the students, faculty, and guests had a variety of cars in the parking lot, which made the experiment more diverse in the parking lot or the community of cars.
Rolling a Car down a Ramp Investigation PLANNING When planning my experiment, I will need to take into consideration. the following points: -Fair testing -Equipment -How many results will I get? -What range of variables I will experiment with I will be investigating, by varying the height of the summit of the ramp. is raised off the ground, if the average speed increases or decreases.
After completing the experiment, the data was transferred from DataStudio to Excel file, Lab9. Next, the points in the data when it started to increase were removed from the data points because that was when the 3-step pulley spun the opposite way of its original direction. This caused the mass hangar to be pulled back up and our experiment focuses on the just the drop. After deleting the excessive data, a scatter plot was created for all five trials for both the No Ring and the Ring. Then a trendline was added for the trials and the option to show the linear equation was selected. From the graph, the angular acceleration was determined by taking the slope from the equation shown on the graph of each trial.
“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
An attempt to create one of the first automobiles was Charles King. However, his car weighed three times the amount of Ford's attempt at 500 pounds. While King's car could only make five miles per hour, the speed of a brisk walk, Ford's automobile reached up to 20 miles per hour.
In conclusion, the title and context of the article are clear, and appropriately match the hypothesis of the authors. There is consistency between the objective of the experiment and its relationship to science. This writer found some issues in the overall presentation of information, in that the text lacks smooth transition, and was difficult to read and follow.
Drag: Here's where aerodynamics come into play. As an object moves through the air, it is met with air resistance as speeds increase. This air resistance pushes against your CO2 car and prevents it from going as fast as it could in a vacuum. You can't completely ever reduce drag, but you can help reduce it by building a more aerodynamic car, but those are more difficult to create.
I have learned quite a lot while constructing my mousetrap car. For example i learned that the friction that is active while the mousetrap car is in motion is rolling and static. Rolling friction occurs when an object rolls over a surface, in my case the CDs are rolling on the floor causing the car to move. Static friction occurs when one solid surface slides over another, for example my solid car sliding over a solid surface.Fortunately i didn't have very much problems related to friction.
There are three safety features in the egg project. The three safety features are seat belts, brakes, and airbags. The seat belts are made out of tape. The seat belts put pressure on the passenger. This means that it will keep the passenger inside the car instead of flying out and getting injured. The airbags are made out of bubble wrap. The bubble wrap will have a huge impact on the area of the passenger. It is like a soft cushion. This protects the passenger from hitting the passenger. The passenger will get hurt by the airbag, but not as much without one. If there wasn’t an airbag in a car, people would be getting into a second collision. A second collision is where the body hits the car. That is the whole point of an airbag. The brakes are made out of cotton balls. The brakes prevent the passenger from getting hit and it puts force on it. Also, they prevent it from getting into a first collision. A first collision is where a
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.
Possible sources of error in this experiment include the inaccuracy of measurements, as correct measurements are vital for the experiment.
The aerodynamic efficiency is the single most important element in designing a competitive car for professional racing or getting the car model on the front of a Car and Driver or Motortrend. Aerodynamics is the study of the motion of gases on objects and the forces created by this motion. The Bernoulli effect is one of the most important behind car design. The Bernoulli Effect states that the pressure of a fluid, in gaseous or liquid state, varies inversely with speed or velocity and a slower moving fluid will exert more pressure on and object than the same fluid moving slower (Yager). The goal of car designers is to make the air passing under a car move faster than the air passing over the car. This causes the air passing over the car to create more downforce than the air passing under the car creates upforce creating a force additional to the car’s weight pushing the car to the road. Large amounts of downforce are needed to keep light cars grounded at high speed and keep to cars from sliding around turns at high speeds.
Planning and Method. Any experiment needs variations as well as fairness to be a true success. The two variations I will include in this experiment shall be: 1) The number of paperclips on the bottom of the helicopter. 2)
Bosnor, Kevin. "How Flying Cars Will Work." Howstuffworks. How Stuff Works Inc., 1998. Web. 24 Jan.