Sunday, October 19, 2008
First Quarter Reflection
Physics is a very challenging course. I never expected it to be this difficult. I usually am a person who enjoys math more than memorization. I liked Chemistry last year much more than Biology because it involved more math problems. I thought Physics would be the same, but it makes me think very hard just to solve one problem. All of the different forces and their directions are quite confusing. Although tests and quizzes are difficult, I enjoy the labs in this course. They are very fun. I also enjoy the class environment. I like how it is laid back, and we get the chance to work with everyone. I'm pleased with my performance in this class so far, but I still hope to do much better by studying and practicing more problems. My goal for this course is to be able to do every concept with ease. I'm scared but very excited for what's to come this school year in Physics and expect to have fun, and all of this is shown in the picture above from Halloween a year ago.
Monday, October 6, 2008
Newton's 1st law
In 8th grade, we were taught about Newton's Laws and learned that his first law stated that an object in motion stays in motion and an object at rest stays at rest until a net force acts upon it. I wasn't really sure what this all meant in 8th grade, but learning about his laws more in depth in physics helps me to understand his laws a bit more. According to Newton's 1st Law (law of inertia), every object continues in its state of motion until acted upon by a net force. The object's state of motion is either at rest or at a constant velocity. At this state, the object's net force is zero. While at a sleepover, we piled the drink bottles up on each other, and they were all at rest. Because of Newton's 1st Law, the bottles stayed at this state of motion until a net force (someone's hand) broke this state and pushed the bottles over. This incident happened a while ago and was something we did only for fun because we were bored, but it is interesting to know now that there is physics related to this.
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