What I have learned about Newton's second law of motion is that the acceleration of an object is proportional to the net force. The equation that shows this is Sigma F = ma. The net force is in newtons. This is important because it shows the connection between the cause of an object moving which is the net force and the effect of an object moving which is the acceleration. This also creates friction in the system. I have learned how to apply this concept to things like an Atwoods machine as well and have widened my knowledge of how the acceleration of an object is related to that object's force.
What I have found most difficult about what we have studied is drawing the FBD's for the Newton's second law problems and figuring out how to make an FBD into an equation. This gets even harder when there are two or even three FBDs involved. Despite this, however, I have been able to get a grasp on how to figure out the equations from the FBDs and it hasn't been that much of a problem.
My problem solving skills have definitely improved because of this unit. Some strengths of my problem solving would probably be applying the techniques from simple problems to harder ones to help complete them. This strategy has helped me solve many problems that I thought I couldn't do. A weakness of my problem solving skills would probably be not figuring out how to use the FBD to make an equation. Finding the net force from the FBD can sometimes be very difficult for me. Even though I have my weaknesses with problem solving I believe that this unit has helped my problem solving skills.
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Great job! Can you say something about systems that have friction?
ReplyDeleteGood job, you used good detail about the progress of your problem-solving skills! Good idea to explain about Newton's 2nd Law at the beginning!
ReplyDeleteGreat description about what you have learned. It reminds me of all I have learned.
ReplyDeleteThank you to every one who posted and I would like to point out that I responded do Mrs. Gende's comment and put in a part about system friction.
ReplyDeleteYour posting states that:
ReplyDelete"the cause of an object moving which is the net force and the effect of an object moving which is the acceleration. This also creates friction in the system"
This is an incorrect statement as being the cause of friction.