I think the data that I received from this experiment were relevant as the results were unexpected and contradicted my hypothesis giving me a different result to my research question. Next time for more reliability and validity in my experiment, I can find a way to make sure that as soon as the mass starts sliding the height is measured automatically. This can require an extra hand to help in the
This is unexpected for all members of the group, as we predicted that a linear line would fit the best. It is, as mentioned before, important to remember that all this information from the experiment must be taken with a grain of salt. One reason for this is the fact that the entire experiment was only done once. This means that the sample space is way to small here and that more trials must be done before any final conclusions can be drawn, for sure. Proof that the experiment must be done more than once can be seen by comparing the points on graphs 1 and 2.
Our lab results on all three data table experiments had a percent error less than 5 percent. When examining these results I can be almost certain it was not systematic error due to the fact that a major percent error was not detected on every trial that was run in each of the three tables. With there being some percent error there is the possibility for random error which are from unknown factors, which could come from impact of outside forces like the air track interfering with the acceleration of the cart. Beings that this was the first lab for my lab partners and I were working there was room for slight personal errors with our use of the computer program as well as the lab equipment. How does the acceleration in Data Table 2 compare with that of Data Table 1?
This column – of a large surface area with glass or ceramic – provides ample contact between the vapor and liquid phases. A temperature gradient is formed because the head of the system is now further from the flask. Factors that affect the temperature gradient include the rate of heating and vapor removal from the system’s stillhead. Upon heating, the vapor of compound A rises, reaching a distance at which it no longer has enough energy to maintain its gaseous form; at this point, the molecules re-enter the liquid state. This process of rising up, condensation, and revaporization eventually results in vapor comprising 100% of substance A.
One of the many mistakes in the lab was the amount of water that was put into the seeds in the beginning of the lab, upon observing the results, I noticed that all of seeds in both of the containers were completely drowned in water. The lab in a whole was not as successful as one would have expected because of the contradicting results between what happened and what should have happened. From this lab experiment I was able to learn what germination is, cotyledon is, the anatomy of a seed embryo, and how light can affect the way that a seed can
It is important to keep track of all of your data and format it in an organized matter. One thing that caused confusion in this experiment was jumping around from different measurements instead of going through them in order. Also there was some miscommunication in our group. Assign certain tasks to small groups within your group to eliminate some time and receive a more accurate measurement. The experiment tells us that the higher the amount of percent salt solution that’s in the volumetric flask, the higher the density will be.
A question that arose after this experiment was conducted is, how would the results differ if the force applied when swinging the object was kept the exact same? The experiment could be furthered by increasing the number of trials for more accurate results. Every experiment has errors that affect the accuracy of the results. In the experiment conducted, the three things that could be improved are the force with which all three objects were swung, the radius of the string (for all three objects) and pressing the stop watch without any delays or advances. To finally conclude, the trend observed as part of this experiment was that as the mass increases, the tangential velocity decreases and this also proves the hypothesis correct.
When doing an experiment with the scientific method, you should only change one variable at a time and keep the other variables constant. For example you could study if crickets chirp more when it’s warmer. The question is “Do crickets chirp more when it’s warmer?” The hypothesis could be that yes, they do. The experiment could be made by placing crickets into containers and changing the temperature. The data could be collected by simply counting the chirps for example per minute.
One is the temperature of the weather. According to Bonnie L. Grant, 2014, cold temperature can freeze a plant’s cell and it can cause the plant not to grow. The experiment was done in a scientific way that would be using materials that can be used to do this experiment. They think that this experiment can be very useful for others and not only for them. They have formulated plenty of hypotheses, one in which they believe that this experiment will be a success due to the materials and places that they can found and the other being the fact that they too have an equally negative insight that they will not succeed due to the lack of the things they will need.