Quiz 4.1

This past Friday, we took a quiz on learning goal 4.1. I felt pretty good about the quiz coming in, and after looking at the answer key, I think I did pretty well. I definitely liked the multiple choice format on some of the questions on the quiz, as well as the optional challenge problems. Overall, I feel pretty good about the quiz as well as my understanding of learning goal 4.1. 

Motion Mapping

Learning Goal 4.1: I can describe motion (in particular, rates of change) in a variety of quantitative and qualitative ways.

This past week we learned to make make and analyze motion maps and graphs. We tooks videos of basketball shots and used the the path of the ball going into the air and coming back down to create a parabola. We then drew several velocity vs time graphs and motion maps. I understood the difference between the two for the most part, and the main concepts seemed to make sense to me.

Unit 3 Project

For my project for Unit 3, I chose to to the advanced problem solving worksheet for learning goals 3.2 and 3.3. I haven't done much of it yet, but from what I have done the work fits the description of advanced, as it has been pretty challenging so far. I think that this problem set should be helpful in preparing for the upcoming test. 

Momentum

3.2 I can apply momentum conservation to closed systems, and can reason about momentum transfer between systems.

This week we learned about momentum through different labs involving both elastic and inelastic collisions. I learned that in an elastic collision, kinetic energy is better conserved than momentum, and in an inelastic collision, momentum is better conserved than kinetic energy. It took me a while to understand the concepts that were presented through the labs, but after comparing the outcomes in each lab it was easier to understand. One thing I'm don't fully understand is the difference between velocity and momentum.