Monday, January 3, 2011
Mon-Day 2
Physics- we explained the charging of an object via INDUCTION, and contrasted that with the charging of an object via CONDUCTION. The actual gain or loss of electrons (the "charging") occurs when the POLARIZED object is connected to the "ground"/Earth via a conducting wire (or via your hand, which then eventually conducts the electrons to the ground).
We discussed the indirect measurement of the charge, in Coulomb's, on an elementary particle i.e. an electron or a proton. The magnitude of charge on a SINGLE electron or proton is 1.6 x 10^-19 C.
Thus, an object can have ONLY A MULTIPLE of this quantity of charge, because electrons and protons cannot commonly be split or broken down further.
To determine the number of excess electrons or protons in an object, we just divide the TOTAL NET CHARGE on the object by 1.6 x 10^-19 C.
AP Chem - we discussed the various types of solids: ionic, metallic, network covalent, and molecular.
We discussed some of the physical properties of each.
Notes will be updated on Blackboard tomorrow.
We discussed the indirect measurement of the charge, in Coulomb's, on an elementary particle i.e. an electron or a proton. The magnitude of charge on a SINGLE electron or proton is 1.6 x 10^-19 C.
Thus, an object can have ONLY A MULTIPLE of this quantity of charge, because electrons and protons cannot commonly be split or broken down further.
To determine the number of excess electrons or protons in an object, we just divide the TOTAL NET CHARGE on the object by 1.6 x 10^-19 C.
AP Chem - we discussed the various types of solids: ionic, metallic, network covalent, and molecular.
We discussed some of the physical properties of each.
Notes will be updated on Blackboard tomorrow.
# posted by C @ 7:32 PM 
