AT Cycle 22

🔴❗ 2: T 1/28, 🟡❗ 4: T 1/28, 🔵❗ 8: T 1/28 - RC circuits problems set 2

QUIZ on derivation of charging and discharging equations TODAY. 

After the quiz, we'll work on the following problems.  These are learning problems, so we will be learning and deepening our understanding of capacitors while we do problems.

    Required 2:  Ch 27 #61, 63, 65, 67, 79, 80, 2006E2, 1996E2, 2010E2
    Enrichment: Ch 27 #66, 69

Also, after learning a little more, I would like for you to revisit the "Tricky Challenge" from the ✅ GoFormative "Capacitor Pre-Lab".  There's a new assignment in ✅ GoFormative called "Capacitor Pre-Lab Revisited" which is also due tonight at 10pm.

Homework:   ✅ GoFormative "Capacitor Pre-Lab Revisited" due tonight - Tuesday, January 28th at 10pm.  Short QUIZ on RC Circuits (above problems) on Friday, January 31st (marking period 2).  Watch the video on Dielectrics in Capacitors below:

🟥 2: F 1/31 lab, 🟨 4: Th 1/30 lab, 🟦 8: Th 1/30 lab - dielectrics & 📄internal resistance lab

Period 2:  Short QUIZ on RC Circuits Today (marking period 2).  

Today, we'll start with electrostatics test corrections.

Here's a list of the things you should be able to do by now:

• Know how to derive the charging and discharging equations (and also know what they are without doing the derivation)

• Know how to get the time constant from a graph two different ways

• Know what happens at t=0+ and t=∞  when charging or discharging

• Derive the energy stored in capacitor equation

• Know how a dielectric changes electric field, capacitance, and energy stored

• Know the two different types of problems when inserting dielectrics

• Derive the “CAKEd” equation

HOUR 2 - Finally, we'll do a lab where we explore the terms: emf, internal resistance, and terminal voltage. 

Safety Precautions:

• Make sure your circuit is only connected to the battery for brief (~1 second) periods of time to avoid overheating and wasting your battery.

After finishing the lab, do textbook problems Chapter 27 #10, 14 and Giancoli Chapter 26 #1, 2, 4.  Then do 2015E2 to check for your understanding.  Watch the homework videos first if you prefer.  

Handouts:  📄EMF & Internal Resistance Lab

Homework:  If you need to review dielectrics, you may review the video below.  Finish the  📄EMF & Internal Resistance Lab due at the beginning of class on Tuesday, February 4th.  Watch the following videos:  

❤️ 2: M 2/3, 💛 4: F 1/31, 💙 8: F 1/31 - more practice AP Problems (1)

Periods 4 & 8:  Short QUIZ on RC Circuits Today (marking period 2).  

Today, if you have not completed the last set, start there:

    Required 2:  Ch 27 #61, 63, 65, 67, 79, 80, 2006E2, 1996E2, 2010E2

Then, we'll do some more practice AP Problems:  

    Required:  2002E2, 2003E2, 1986E2, 1988E2 (don't worry about part e), 1989E3

We'll have time to work on these problems again next class after your lab quiz.

Homework:  Short QUIZ on RC Circuits next class - Tuesday, February 4th (marking period 3).  LAB QUIZ on internal resistance Thursday, February 6th.  Finish any of these required problems and do some additional practice.  Upload a PDF of your solutions to ✏️ Google Classroom by Sunday, February 4nd at 10pm.