This week in science we continued with the dynamic lesson we have been doing. We finished lesson five and lesson seven. In lesson five there was a question that involved the motion of a hockey puck. In the question we had to come up with a story where there was the hockey puck was moving but then an unbalanced force comes. The hockey puck keeps moving though. My story was a player was pushing the puck with their stick and another player started pushing on the puck with their stick in the opposite direction. This story means that even though there are two forces on an object it can still move just at a different velocity.

In lesson seven the questions involved two students, one on roller blades and the other pushed the student down a hallway. The first graph showed a flat. the Y axis was the velocity and the X axis was the time. The flat line meant the student on roller blades was going at the same speed the whole time after the other student pushed her. The first graph had the position on the Y axis and the time on the X axis. In the beginning of the graph there was a line but later in the graph it had a line below it from where it ended. This meant the student was moving forward but then she turned around and went backwards. whenever there are two lines and the second one is behind and below the first that means whatever object it is representing moved backwards.