##### Veronica Ramos

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#### Recent Reviews by Veronica

Thu Apr 29, 2010 4:38 PM
Force and Motion: Newton's Third Law
Before reading this tutorial I thought I had a pretty good understanding of Newton’s third law. I felt that the reading took a concept relatively easy to understand and made it seem much more complicated. I did not enjoy the simulators as much as I did for the first and second law. Overall, I can say that Newton’s third law states that everything moves relative to everything else. If you push someone they move, and you would move as well. The force from pushing someone or something pushes you to move also. That would be the idea of equal and opposite reaction. I guess an easy demonstration to do with the students is the demo using the hands where one hand is open and the index finger of the other hand is pressing down. The students will see the indentation and notice that their other hand is pushing as well.

Thu Apr 29, 2010 3:47 PM
Newton's First Law
Newton’s first law basically states that if an object is at rest it will remain at rest, unless an outside force acts on it. This idea also applies to an object’s acceleration. If an object is moving in a straight line at the same speed (i.e. earth) it will continue to do so. An outside force is required to change an objects direction or speed. Then an easier concept to understand is net force. This means when there is equal force there is no force at all. The object does not move. The tutorial did have a few good simulators to show the concept of Newton’s first law. The lessons that I might do with my class would be the table cloth and dishes trick-to show the concept of inertia and an outside force. To show a net force I would probably demonstrate a game of tug of war. I would also like to show the simulators from the tutorial as well.