Unit One? Done!
This unit, we spent our time learning about the accuracy vs. precision, the different types of graphs and their relationships, scientific notation, dimensional analysis and the metric system, and period of a pendulum.
The difference between accuracy and precision is accuracy is how close a measured value is to the actual value and precision is how close the measured values are to each other. Accuracy is based on correctness while precision is based on how it can be repeated.
We also learned about sets of data that have no relationship, proportionally direct, inverse, exponential, and square rooted. Scientific notation is an easier way to write numbers that are either too big or too small. For example, if we had to write 1,230,000,000, the scientific notation of writing it would be 1.23 x 10^9. Dimensional analysis is used to convert one unit to another, such as from grams to megagrams. In a way, it's like stoichiometry! Last but not least, we learned about the period of a pendulum.
I chose to use the picture above because this was one of the experiments in our pendulum lab. I felt its significant to use this picture because we spent majority of our time in this unit on the lab. Because of the lab, we were able to understand the relationship between the period and mass, period and length, and period and angle of a pendulum.
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