We started off the day by discussing charges - what they are, how they look, and how they are transferred
A charge is the force of electromagnetic interaction within an object
Charges are seen or felt as shocks, light, attractions and repellents
They are transferred through the movement of electrons, separation, and through the power of friction.
Next, we had our Electrostatics investigation lab where we tested the properties of electricity, especially static eletricity by charging certain objects and determining whether they repelled or attracted a negatively charged balloon.
Afterwards, we learned about conduction and polarization:
conduction is the ability to, in this case, transfer electricity
Polarization is just a fancy word that scientists use for the separation of charges within a substance
Lastly, we learned two new equations dealing with the properties of electricity:
q = eN
in other words... charge = 1.6x10^-19 times the number of electrons.
E = kq/r^2
Real world connection:
On a hot day at the playground, riding down the hot plastic slide can cause you to feel a bit of a shock. That is because plastic is an excellent conductor of electricity and the friction caused by your sliding down on the slide will create a transfer of the electrons in the slide.
No comments:
Post a Comment