Map project:
Methodology behind the Map
Isabel
Ellie
Mitchell
Luke
This project was about making a topographic map of the Twin Buttes area. Our class had the ability to access the Twin Buttes forest by taking a short walk. In order to measure the size of the map area, we took a compass and pointed it in the direction that we wanted to go. We then measured the degrees from magnetic north. Then we walked in the direction and counted the number of steps before we ran into the rock (corner of the map). Once we were back in the classroom, we used a circular protractor in order to predict the direction we went. After that, we converted the number of paces or steps into 2 cm per step. In order to plot the contour lines on our map, went to google maps and used a tool that gave a visual example of the elevation compared to sea level. With this, we took the image that Google Maps gave us and used our own experience with the terrain to plot the contour lines (the brown lines going across the map). This mean that where the lines are is where the terrain is steeper. We also had to use logic to see if our map was correct. This is because there was a margin for error and I had to be certain that it wasn’t wrong.
Isabel
Ellie
Mitchell
Luke
This project was about making a topographic map of the Twin Buttes area. Our class had the ability to access the Twin Buttes forest by taking a short walk. In order to measure the size of the map area, we took a compass and pointed it in the direction that we wanted to go. We then measured the degrees from magnetic north. Then we walked in the direction and counted the number of steps before we ran into the rock (corner of the map). Once we were back in the classroom, we used a circular protractor in order to predict the direction we went. After that, we converted the number of paces or steps into 2 cm per step. In order to plot the contour lines on our map, went to google maps and used a tool that gave a visual example of the elevation compared to sea level. With this, we took the image that Google Maps gave us and used our own experience with the terrain to plot the contour lines (the brown lines going across the map). This mean that where the lines are is where the terrain is steeper. We also had to use logic to see if our map was correct. This is because there was a margin for error and I had to be certain that it wasn’t wrong.
Rube goldberg:
In this project, we learned many things from calculating energy to using power tools to create an intriguing Rube Goldberg contraption. Our simple task was to hit a ping pong ball with a paddle. We achieved that task because of the 15 steps that led up to it. The goal for this project was to work as a group and learn everything together. We somewhat achieved this project because we came out with a functioning Rube. Although we produced the main project, there was definitely a separation between the tasks. I feel like I didn't build at all because I was in charge of the whole sketchup and all of the calculations. Besides that, this project was so much fun and I enjoyed it a lot.
rocket project:
Rocket log:
entry 1 Day 6: day after first test fire. today we will make our parachute.
Entry 2 day 7: Today we will attach our parachute to the rocket and make our fins.
entry 3 day 8: Today we will practice launch our rocket.
entry 4 day 9: today we will attach nosecone and fins to our rocket
entry 5 day 10: today we will tAKE A BREAK AND WORK ON DIMENSIONAL ANALYSIS
ENTRY 6 DAY 11: TODAY WE WILL LAUNCH TO SEE IF OUR NOSECONE AND FINS WORK WELL WITH OUR ROCKET.
ENTRY 7 DAY 12: OUR ROCKET BENT IN THE CENTER DURING LAUNCH, SO WE WILL BISECT OUR ROCKET TO MAKE IT FLYABLE AGAIN.
ENTRY 8 DAY 13: OUR ROCKET'S PARACHUTE AND NOSECONE WAS STOLEN, BUT WE WILL ADVOCATE FOR NEW ONES. OUR EXHIBITION WENT WELL AND OUR ROCKET DIDN'T BLOW UP!
Data table:
Reflection:
Overall, this rocket project was exciting and took a lot of time to complete. Our rocket was looking really well in the making and I felt confident with it. The parachute worked really well and had an exemplary form. When it came to launching on day 1 my rocket did fine although our rocket did not deploy. On day 2 of launching, our rocket went especially high, but fell straight to the ground without any parachute. Because of that, our rocket bent dramatically in the middle chamber. We immediately had to do something because exhibition was in 2 days. We bisected the rocket in half to make our rocket a straight structure again. Our rocket was fine from there but little did we know what would happen at exhibition.
Risa had left the day of exhibition leaving me in charge. It was up to me to make sure that our rocket flew at it’s full potential. I felt confident until I arrived at physics that day. Someone had stolen our nose cone as well as our parachute. Those were some of our most important components to our rocket! Luckily, I had many friends who helped me develop a new nose cone and parachute in a matter of minutes. At the rocket launch, I was worried that my rocket would explode in front of everyone. It didn’t explode, but my rocket flew sideways and hit the phone out of my friends hand. Even though our rocket didn’t win, I felt like I spent a lot of time and effort and that’s what really counts.
Risa had left the day of exhibition leaving me in charge. It was up to me to make sure that our rocket flew at it’s full potential. I felt confident until I arrived at physics that day. Someone had stolen our nose cone as well as our parachute. Those were some of our most important components to our rocket! Luckily, I had many friends who helped me develop a new nose cone and parachute in a matter of minutes. At the rocket launch, I was worried that my rocket would explode in front of everyone. It didn’t explode, but my rocket flew sideways and hit the phone out of my friends hand. Even though our rocket didn’t win, I felt like I spent a lot of time and effort and that’s what really counts.
Conclusion:
At exhibition, the angle that our rocket flew was 47 degrees and its actual hang time was 4.2 seconds.The observation table was about 174 feet away from the launch pad. When we calculated our max height in meters we imagined the observation distance and the max height as the legs of a triangle. Then we were able to calculate the max height by using tangent. The calculation involved multiplying tangent by our angle 47 degrees and then multiplying that by 53, the observation in meters. The next thing that we were required to calculate was velocity. The average actual velocity for the whole trip was calculated by multiplying the max height, 56.84 meters, by 2, and then dividing that by the time, 4.2 seconds. The velocity was 27.07 m/s for the whole trip. For the calculation from our max height to our theoretical hang time we found the square root of 56.84 divided by 4.9, one half of the acceleration rate. The answer for the theoretical time was around 6.81 seconds. To find the percent error we subtracted the theoretical time from the actual time, divided that by the theoretical time, and then ..multiplied that by 100%. According to our calculation, we had a 38.34% error. Our rocket’s percent error was relatively low because it was aerodynamic, but it was also incredibly heavy for its size.