Elementary Charge

Today in class, we reviewed what we learned last friday.

We discussed Electric and Magnetic Fields, and Coulomb's Law.

Where k equals the constant 9.0 x 10^9, q's are the charges, and R is the distance.

ELEMENTARY CHARGE

electron = 1.6 x 10^-19

proton = 1.6 x 10^-19

The charge of an electron was measured by Robert Millikan. The charge of the electron is the same as a proton, and you have to have a multiple of this charge, because you cannot have half an electron.

1 Coulomb has 6.24x10^18 elementary charge.

In other words, "1 coulomb is a very big number"

ELECTRIC FIELDS

- Like charges repel each other, while opposite charges flow from the negative charge to the positive charge.

We did some examples on the smart board (i'm not sure if ms. K uploaded it)

And after we did the examples, Ms K gave us a handout, that pretty much explained everything we need to know about coulomb's law.

It covered Coulomb's Law in One Dimension, Coulomb's Law in Two Dimension:Equilateral Triangle, Coulomb's Law in Two Dimensions: The Square : The individual Forces & Adding the Forces. So make sure to get the handout from Ms. K if you weren't in class!

After, Ms K instructed us to answer the Practice questions on page 420, #1-5, and Questions # 10, 11, 15, 16, and 17 on Page 423. The questions on Page 423 may be for hand-in, so make sure you finish your homework!

Next scribe is domana