Semester 2 Blog #1

        Semester 2 PHYSICS! This week in physics we started to learn about electric charges, forces, and fields. We learned that there is a Law of Conservation of Charge, a charge-force law, and conductors and insulators. The Law of Conservation of Charge is that in an isolated system the net charge will remain constant. This means the charge in will equal the charge out (just like momentum and energy laws). The Charge-Force law tells us that like charges will repel (++, - -) and unlike charges will attract (+ -, o +, o -). Finally we learned about conductors and insulators. A conductor is an object that transfer electrons easily, for example metals. Insulators are objects that do not transfer electrons easily, for example rubber, glass, or plastics. These are all the main things we learned in physics. Besides all of this we also did a "magic tape" lab. This lab enabled us to learn about charges with an item we commonly use.

          My photo (left) is of a reflex boxing bag. This item has both insulators and conductors. The top of this unit is made of foam (insulator). The second part is the metal pole and spring which are both made of metals (conductor). The last part is the base which is made of plastic (insulator).