Answer :
Before, trains worked using the steam engine. Thus, it uses heat so it is crucial to apply heat balance. The steam engine absorbs energy during the stage of boiling water. So, this is the endothermic reaction. When the steam is used to work the piston, it has to release this energy through running the train. The excess energy is released as an exhaust to the chimney. This is the exothermic process because it releases energy to the surroundings.
Answer:
Define the Problem:
The purpose of this engineering lab, is to build and test a device, using what we have learned about repeated trials, that releases and absorbs thermal energy in order to reach a goal.
Criteria and Limitations:
In this section, please list at least three criteria that must be met by your train design. Also include any limitations that could prevent it from getting its cargo to the station.
Criteria Limitations
Must have helium balloons The train tracks will have two hills and spaces where the track is missing.
Must have 3 designs planned before starting to test If I don’t have any springs, then the cargo won’t get to the station.
Have to have at least one cargo box If there are no steam engines, then the train won’t be able to move at all.
Design Ideas—Pros and Cons:
In this section, describe three design ideas you have for your train. List at least one pro (a positive) and one con (a negative) for each design option.
Description of Train Design Pro Con
Train One One train car, cargo box, panda, two springs, steam engine The train car used little materials, so it most likley wouldn’t be super expensive. With the steam engine, the train won’t go as fast, and it can only move forward
Train Two One train car, panda, cargo box, steam engineer, heat burner, two balloons, and springs. springs Heat burner
Train Three One train car, panda, cargo box, steam engineer, heat burner, two balloons, and springs. balloons Heat burner
Data:
Record the results of each of the test runs you make to the train station. Be sure to describe any changes you make to your train between each test run.
Train One Train Two Train Three
Test Results? Any redesign?
Test Results? Any redesign?
Test Results?
Track One I got the panda to the station safely with the steam engine only. It was a little too fast with the evaporation cooler. It was faster then both of the results with the heat burner.
Track Two I crashed because I didn’t have the springs on. I added a spring but crashed again because I didn’t put both of the springs on. I didn’t crash this time because I put both springs on.
Track Three I crashed because I didn’t have balloons. I put balloons on, but crashed again because I didn’t have springs on. The panda got to the station safely because I fixed my mistakes by using balloons and springs.
Analyze Data and Refine Design:
This section will include an analysis of your test results and plans for redesigning your train. Please write in complete sentences.
1. Were any of your train designs able to get their cargo to the train station without crashing?
A. If yes, describe the design of the successful train.
All three of my train cars successfully got their cargo to the train station without crashing.
B. If no, describe the design of the train that got closest to the station.
2. Which of your criteria presented the most challenge to getting the train to its goal, and why?
I think train 2 presented the most challenge to getting the train to it’s goal, because it required a lot of trial and error.
3. Which limitation was the biggest roadblock to getting the train to the station?
The biggest limitation that presented the biggest road block, was that the train tracks had two hills and spaces where the track is missing, making it hard to get the train to the other side.
4. Why was it important to have endothermic and exothermic processes in the building materials of your train?
A. Which engines released thermal energy in an exothermic reaction?
B. Which engines absorbed thermal energy in an endothermic reaction?
Before, trains worked using the steam engine. Therefore, it uses heat, so it is crucial to apply heat balance. The steam engine absorbs energy during the stage of boiling water. So, this is the endothermic reaction. When the steam is used to work the piston, it has to release this energy through running the train. The excess energy is released as an exhaust to the chimney. This is the exothermic process because it releases energy to the surroundings.
5. If you could add any building item options to your virtual train to improve its design, what would those items be, and why would you need to add them?
I think the only thing I would add to my train car to improve its design, is a better engine. That way the train car could go farther, faster.
Explanation:
thats what i said and i got 100