For classes today

Periods 1-2, 5-6, 8-9:

First, try to reach consensus on the two problems from Tuesday, with non-uniform charge densities. Focus on the setups, as you talk with each other and compare what you had. Feel free to bring up the AP solutions if necessary, either on the front computer or your chromebooks or phones..

We are moving on into NON-Gaussian problems, where we will need to find the E-fields and potentials for objects that are not spherical, flat, or 'really long.' Actual wires and sticks actually do have ends, so how do we handle reality? Watch a video and take notes on how to do this for sticks, as well as a curved stick/partial ring. There is a third on finding potentials for sticks. These involve integrals, as we try to sum up the E-field components and potentials from each point charge on the object.

In our packet, you can begin trying the problems on pages 6 and 7 in small groups.


Period 3:

You should watch and take notes on a video about Newton's law of gravity, which has an example of how to use it, as well as a second video on how to use Newton's laws to figure out how strong gravity is and the acceleration of gravity at different distances above the earth.

Based on these, you can get into small groups and go through the homework problems from Tuesday, helping each other figure out how to do them (similar to examples in the videos), and reach consensus on your answers. We will extend on these ideas tomorrow and get into figuring out how fast satellites need to travel to stay in orbit, as well as how fast we are moving around the Sun right now!