Wednesday, May 17, 2017

October Sky



Paragraph #1 - As sputnik( the world's first man-made satellite) was launched into Earth's orbit one student named Homer Hickam was encouraged to build his own rocket, but he can't do it by himself, he needs the help of his friends. Quinten, Roy Lee, and O'Dell. When Homer had this strange phenomena idea many people were easy to judge him, many people believed that he couldn't do it, which made it a bigger challenge, the only one who encouraged him was his teacher Miss Riley, and Miss Riley even told him and  his friends to join the science fair and if they won they were able to go to the national science fair in Indianapolis, and later get scholarships. Homer first rocket was a disappointed since it blew up his mother fence, and the second fly test was a lot better as well as the third, fourth, sixth, seventh, eight, etc. They eventually got it to work, Homer's father disapproves with the idea of flying rockets and thinks it is just a waste of time, but Homer works hard and eventually wins the national science fair and manages to go to college.

Paragraph #2 - In the movie October Sky, I dislike on how every kid had an expectation and that expectation was them working in the mines, and many of the parents believed that their children couldn't do better than working in the mines. One thing I liked about the movie October Sky was that Homer proved them all wrong and believed in himself when nobody else did. My favorite character in October Sky is Homer Hickam because he kept on trying when everyone else thought he was insane, even though his future was already set for him, (which was working in the mines), he never gave up on his idea to build a rocket.

Paragraph #3 - Homer's friends, the"rocket boys," were at first skeptical about Homer's interest in rockets, but later encouraged his dream. I tend to encourage my friend's  dreams for example if one of us wants to do something totally insane but seem like a perfect idea for them, we still tend to encourage them. Why may you ask? I'll tell you why- that's your duty as a friend, you have to support and be there for them no matter how crazy their idea is, and if you didn't why type of friend would you be? You can't let them experience that moment alone.

Wednesday, May 3, 2017

Straw Rocket Challenge

As part of Unit 5 - Flight, Rocketry & Space Exploration, we were recently given a challenge to design, construct and launch straw rockets that would travel the greatest distance possible. After building our straw rocket in teams, we tested them on the straw rocket launcher. The launcher uses pneumatic force created by releasing a weighted drop rod in the cylinder to launch rockets. For example, the launcher converts the gravitational potential energy of the raised rod to the kinetic energy of the rocket's motion. The forces that act on the rockets are weight, thrust, lift and drag. We performed three launches at a trajectory angle of 45º.





1. The materials that we used were precision straws, straw rocket launcher, modeling clay, tape measure, card stock, scissors, rulers, digital scale, we used the card stocks as fins, the precision straws as the body, and the clay as the nose cone.

2. Farthest distance: 36ft
    Average Distance:34ft
    Average time:1.90 s
   Average speed:17.89 m/s

3. (A.) Adding weight to the straw's nose affects how it flies because the clay for example adds more  weight on one side  of the straw, meaning it will be unbalanced and won't be able to go as far. Having fins affect how it flies because it helps to keep its stability of a rocket, and it keeps it flying in the right directions without wobbling in the air. 
    (B.) The launch angle affects where it lands because the angle affects where the wind resistance is and can determine where it land for example the rocket distance, which can affect how far the rocket goes.

4. If I had an opportunity to redesign my straw rocket I would add another fin, meaning it would have four in total, since the fins create stability making the rocket less wobbling and it most likely will go far .


Thursday, March 30, 2017

Pop Pop Boat Project

For Unit 3- Earth's water and It's Properties, we were given a project to build a working pop pop  boat that runs on heat and the water it floats in. A simple pop pop  boat needs a steam boiler, a candle, and a boat hull to hold them. When a small heat source, such as a candle, is placed under the boiler (engine/ pressure chamber), a stream of hot water pushes out from the tubes creating a partial vacuum inside the boiler. The vacuum pulls in more water, water gets heated, and the process repeats until you remove the heat source. This is how the pop pop boat moves forward through the water.

CRITERIA FOR SUCCESS:

  • Decorated boat hull
  • Support a given weight (80 pennies for 10 seconds)
  • Working engine
  • Goes the length of a 3-meter (10 feet) gutter in less that 60 seconds (1 minute)


1.) Some of the materials that I used to make my pop pop boat were an alumni can, epoxy, cereal box, hot glue, straw, boat template, milk or juice carton.

2.) No, I didn't meet all the criteria for success because my boat didn't meet the criteria of going 3-meters, the reason why my boat didn't meet this criteria was because I had cut in my straw, which made the boat slow down.

3.) It is thermal energy when you apply heat to the boiler, and mechanical energy is when it converts energy into motion

4.) To prime the boat means to add water into the straw this step is important because the straw can get burned when heat is added, as well as the boat.

5.) My pop pop boat's design was one of the  best because most of the students who made the same  boat design went the length of 3-meters and made it in 60 seconds or less. In class data (period 4) one of the pop pop boats made it in 22 second with 38 seconds to spare, and in class data (period 6) one pop pop boat made it in 14 seconds with 46 spare, meaning that this boat design was one of the best.

6.) If i were to do thing project again I would change the straw to a sturdy one because by straw had a cut in it, meaning that it would not go as fast as it was expected to do so. One piece of advice I would give to a future STEM student would be to check every single of material because it can cause your pop pop to slow down.

Wednesday, February 1, 2017

Popsicle Stick Bridge Project

For Unit 2- Bridge Building, we designed and built out of Popsicle sticks. First, we researched some possible design and then worked on a presentation. The type of bridge my group and I decided is a Cantilever bridge. We decided to name our engineering firm D.A.M.M. Also, the name of our bridge is, Get the London Look. The criteria for success on this project is for the bridge to:

  • Stay under a budget of $500,000
  • Span at least 30 inches
  • Allow a toy car to successfully drive on the deck
  • Support a weight of at least 60 pounds  

Cost of Material

  • Wood glue-$20,000 per bottle
  • Regular popsicle stick-$1,000 each
  • Jumbo sticks-$2,500 each
  • String-$5,000
The total cost of my group's bridge is $407,500. After three weeks of building our bridge, we presented and tester our bridge project.

  1. )My group did meet all the criteria for success.                                                                                 
     2.) My group role was the Project Manger, as the Project Manger you had to supervise the entire group, make sure everyone is focus on building the bridge, make sure that the bridge/presentation is complete, and resolve any arguments between group members.       

     3. )My favorite part of doing this project was to actually build the bridge, and my least favorite thing was the fact that we had to do a google  presentation and later one present.

     4.) If I had the chance of doing it all over, I would change the whole bridge design and build a Truss bridge because I would like to make my bridge stronger than what it was before. 

    5.) One of the best moments that I had when I was doing this project was the fact I got to work with the people that I get along with  and we didn't have any major arguments, one of the worst moments that I had when I was completing this project was when one of our bridge side was unbalanced so we had to add a bunch of sticks which got everyone in my group frustrated.

   6.) If I were to give advice to  future students, I would say to build a truss because it is alot stronger and I would also say to make the deck strong too by adding sticks and a bunch of glue so it can stick alot better and so it will be able to hold more bricks. 
                                                  r

Wednesday, November 30, 2016

LEGO BRIDGE CHALLENGE

We are currently on Unit2 - Bridge Building and my group members and I were given a Lego Bridge Challenge. We were given 16x16 base plates,and a variety of Lego bricks, plates,slopes, etc.The goal was to build a bridge that spams at least 20 inches, allows an object 6.5 inches and 6.5 wide(fire truck) to pass under the bridge, and support a load of 600 pennies(approximately 1,500 grams).We were given 35 minutes to build our Lego bridge.In addition, we independently built an online bridge using digital LEGO bricks using Build with Chrome.



                                      MY TEAM LEGO BRIDGE





 1.) In my opinion what I found more engaging was the team Lego build bridge because it was a group team challenge and In my opinion I like group team challenges.

2.) Yes my group and I meet the criteria fro success because it was longer then 20 inches,it allow the fire truck to pass under our bridge,and lastly it supported 600 pennies.

3.) One challenge my group and I faced was that our middle part of our bridge was unstable so to fix that we build a tower in the middle to support the bridge, and one challenge that I faced when building with Building with Chrome was that I would lose track of my pieces.

4.) If I had a chances to rebuild my bridge I wouldn't change anything because I was able to meet all of the criteria that was given to me.

Friday, November 11, 2016

Powered Racecar Project

Our second project for unit 1-Simple Machine was to design and build a race car powered by either a balloon,rubber band,or mousetrap.The project focuses on how the wheel and axle work,as well as how forces and motion apply to the car.In addition,after measuring the distance(meters)and time(seconds) on both test days,we were able to calculate the average speed (meters per second),using the equation average speed=distance/Time.In Order to earn an 'A' on this project,our powered race car needed travel at least 5 meters forward and accelerate up a 15º ramp.We were given two opportunities to meet criteria for success.













1.My mousetrap powered race car works by using A mouse trap for a motor, to attach a string to the mouse trap and axle in this method one end of a string is attached or tied to the the mouse trap on the other end of the string is  wound around the axle the mouse trap springs and stretch and now you have your stored energy and as a mouse trap car is released the mousetrap pull the string off the axle causing the wheels to turn and off the vehicle goes.

2.The materials that I used to construct my power race car is foam board,hot glue gun,mousetrap glue sticks ,CDs ,three sticks,paint,duck tape.

3.My Powered race car traveled further than 5 meter,The farthest distance my car traveled was 10 meters and it did not accelerate up the 15° ramp.

4. After test one we did not modify/ redesign our project because after we tested our race car,our race car was accelerating just fine and we thought as a group that our project was going to go up the ramp  the second time.

5. Our average speed of our powered race car for test one was 0.75 and for test two it was 0.55

6.some success that we face during our project was that a race car traveled more than 10 m and some challenges we face during our project was that at first our race car didn't accelerate as fast as we wanted it to,One thing I would do differently would be to add a bigger mousetrap so it would be able to accelerate more faster and be able to go up the 15° ramp.

Thursday, October 6, 2016

Catapult Project

For unit 1-Simple machine,we worked on recently finished the catapult project.
A catapult is a device used to launch an object some distance.We examined the concept of levers,such as the effort,fulcrum and load,as it relates to catapult and other tools we use in our daily lives.In addition to identifying types of catapults,we learned abut projectile motion and mechanical advantage.The goal of the this project was to design and build a catapult that can launch a load with distance and accuracy.We tested our catapult to determine how far it can launch a ping pong ball and how many time(out of 4) it could hit the target(castle) that was placed at distance of two meters.Wee were given two opportunities to meet the criteria for success.

                                                                          Fron View
                                                                                                                          Side View

           My Catapult                                           


 










Questions:
1. What materials did you use to build your catapult?
The materials that I use to build my catapult was popsicle sticks,wood glue,rubber bands, and a spoon.
2.What type of catapult did you design?What class lever is your catapult?
My catapult design was a mangonel and the mangonel is a 3rd class lever.
3.How far did your catapult launch the ping pong ball for trail#1?trail#2?Did you change your catapult fro trail#1?Why or why not?How accurate was your catapult hitting the castle for trail#1 and Trail #2?
For the first trail my catapult launch the ping pong ball 7ft and for the second trail my catapult launch the ping pong 16ft,my catapult accuracy for the first trail was 2 out 4 and for the second trail was 1 out 4,and yes I did change something,I added an extra rubber band so it was able to shoot farther.
4.What difficulties did you experience when building and/or testing your catapult?
One of my difficulties while I was building my catapult was that I added a lot of glue,which the glue made my catapult wobble.
5.What are some important concepts/ideas you learned while designing your catapult?
Some important concepts/ideas that I learned while building my catapult was always ask your teacher for help,and don't add to much wood glue.
6.If you were to make another catapult,what would you change to make it launch farther,and more accurate?
If I were to make another catapult I would change my design and make a ballista because it shoots far and the ballista has an accurate aim.