AT Cycle 28

🔴 2: W 3/1a, 🟡 4: T 2/28 - Ampere's Law AP problems (1)

Today, we'll continue class by finishing any problems that you didn't finish from the textbook.  Then, we'll use what we've learned about Ampere's Law to solve some AP problems.  

    Required:  2000E3, 1993E1, 1979E2

Upload your solutions to the ✏️ Google Classroom assignment due Wednesday, March 1st.  

Homework:  Finish the above AP problems and upload to ✏️ Google Classroom by Wednesday, March 1st.  Start reviewing induction concepts for next unit by watching videos on my AT Induction Review page.   

🟥 2: W 3/1b, 🟨 4: W 3/1 - Ampere's Laws AP problems (2)

Today, we'll start AP problems and do some AP multiple choice.  

    Required: 1983E3*, 1988E3a, multiple choice

    * Add the following part to the 1983E3 problem: 
(c.) (i.) Find an expression for the force per unit length between the two wires.  (ii.)  Is this force attractive or repulsive?
        ANSWER: (c.)(i.)  F/ℓ = μ0 I1 I2 / (4πa).  (ii.) attractive

    Multiple Choice Answers:  19-E, 47-D, 68-C, 65-D, 50-E, 42-E

Then, we'll do some Ampere's Law problems from the textbook: 

    Required: Halliday Ch 29 #35, 49, 52, 53, 54

Homework:  Upload a PDF of your solutions to the 2 AP problems and textbook problems above to ✏️ Google Classroom assignment due Friday, March 3rd.  Review induction concepts for next unit by watching videos on my AT Induction Review page.  

❤️ 2: Th 3/2, 💛 4: F 3/3a - JJ Thomson's experiment (1) 

Today, as our daily quiz, we'll do some practice with a mass spectrometer.  Make sure you enter YOUR first and last name in the name field on the "enter answers" tab.  Upload your "calculations correct" screenshot to ✏️ Google Classroom by Sunday at 10pm.  Only screenshots with YOUR first and last name will be accepted for credit.  

Then, we'll use a simulation of a cathode ray tube to repeat the 1897 experiment by J.J. Thomson to find the charge-to-mass ratio.  (It's actually not exactly the same, but there are similar elements.)  Find the experiment in ↩️ Pivot Interactives called "JJ Thomson Experiment - finding charge-to-mass ratio."  In this lab, you will combine your knowledge of electrostatics, magnetism, and circular motion.  This lab is due in Pivot on Sunday, March 5th at 10pm. 

Homework:  Complete the mass spectrometer activity in ✏️ Google Classroom by Thursday at 10pm, and complete the charge-to-mass ratio lab in Pivot by ↩️ Sunday, March 5th at 10pm.  Unit Assessment on all of Magnetism Tuesday, March 7th. 

📕❗ 2: F 3/3, 📒❗ 4: F 3/3b - JJ Thomson's experiment (2) 

Today, we'll continue working on the lab above. 

Homework:  Complete the mass spectrometer activity in ✏️ Google Classroom by Sunday, March 5th at 10pm, and complete the charge-to-mass ratio lab in ↩️ Pivot by Sunday, March 5th at 10pm.  No late work accepted.  Unit Assessment on all of Magnetism Tuesday, March 7th. 

Optional Extra Credit Lab:  (for additional small 100% grade in Lab category if done correctly)  ↩️ Pivot Interactives "Force on a Current-Carrying Conductor in a Magnetic Field."  This lab will verify the equation you learned last year of the magnetic force on a current carrying wire.  Lab is due Monday, March 6th at 10pm.  Absolutely no late work accepted, no exceptions.