Today we reviewed for our test by playing a very fun game. We were divided into 5 groups and we were asked questions about the unit. If we got about three questions right in a row (depending on how hard they were), we would be able to take a little ball and try to shoot a basket in a mini hoop. If you missed you would get 2 points and if we scored we would get 4 points. For every point we got, we would cross off one of another team's X. Each team had 10 X's so the X's were quickly gone. Two teams were quickly eliminated because they ran out of X's. In the end there was a three way tie and we got candy.
Tuesday or March 17, 2015 A.D.:
Today was Saint Patrick's Day! But there was a test :(. I think I did good on the test though because I studied a lot. The test was rather easy, although I am glad that I found my calculator just in time. :) The test was on the things we did recently like work, power, and how to find the weight of an object if you only know the mass (on earth).
Wednesday or March 18, 2015 A.D.:
Today we received our test, and I was thrilled to receive a 100%. Mrs. Giacomelli then introduced us to Unit 3 Section. In this new unit we learn about energy. Energy is the ability for a system to do work. It is also diluted mass, but read a quantum physics book about that because that topic makes my brain hurt. We learned about the different types of potential energy and what Kinetic energy is. We learned that all collisions of objects are called inelastic collision meaning that not all of their Kinetic energy is conserved. This is true for all collisions because when objects collide there is always friction.
Thursday or March 19, 2015 A.D.:
Today we started our mechanical energy lab. Mechanical energy is the sum of the kinetic and the potential energy of a system. We took the mass of a couple of different balls and dropped them from different heights. We found out their gravitational potential energy because we knew their height and their mass. We will drop the objects and we will calculate their kinetic energy. We are hoping that the kinetic energy and the potential energy are the same. This number is the mechanical energy of the entire system (ball we dropped.)
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