IB Physics .:. go up

Magnetism and Induction

Chapter 20, 21 Syllabus

 

Block

Class

Due on this class

1

Dec 5/6

•Tests Back

•Intro to Magnetism

•Magnetic Field lines

•Domains and permanent magnets

•Electric currents and magnetism

•Force on current-carrying wires:  Part 1: Physics Tai Chi

•Force on current-carrying wires: Part 2: Magnitude and direction

Read: 20.1-20.3, 20.13

Turn In: Ohm’s Law Lab

Turn In: Circuit Spreadsheet

Turn In: Oscilloscope Lab

2

Dec 7/10

•Force on charged particles (S: 20.4)

•The Hall Effect

•PreQuiz 20.1 – Vector Cross Products

Read: 20.4-6

Check #1: 20: 1-4

3

Dec 11/12

•Skill Set 20.1

•Ampere's Law

•The definition of the Ampere and Coulomb

•Crossed field problems: Eq = qvB

•Solenoids

•Hysteresis - a demo I probably shouldn't do...

Read: 20.7-8, 11-12, 14

Check #2: 20:5-16,

 

4

Dec 13/14

 

•Galvanometers and Speakers

•DC Motors

•More than one Magnetic field

•Lenz's discovery and magnetic flux

•Electromagnetic induction

•Lenz's law

•More induction

Read: 20.9-10, 15

Check #3:20:17, 19, 20(83A), 21,

22(26A upward), 27, 36(91.9 A), 50(1.57x106V/m), 53

 

5

Dec 17/18

•PreQuiz 20.2 – Calculating force, trajectory, magnetic field.

•Induced EMF in moving conductors

 

Read: 21.1-2

Check #4:20: 24(1.3x10-3”g”s), 29, 31, 33, 61

6

Dec 19/20

•Skill Set 20.2

•Alternators

•My friend eddy

Read: 21.3

Check #5:21:1, 2(.15V), 3, 4(right to left), 5, 6(24mV), 7, 8(ccw[1],cw,zero,ccw), 9

 

7

Dec 21/ Jan 7

•PreQuiz 21.1 – Lenz’s Law and  direction of induced current

•Transformers and the transmission of electrical power (S: 21.7)

•Magnet Lab intro

•Work on Magnet lab

Read: 21.5-7

Check #6: 21: 10(.17V, cw), 11,

12(cw, 43mV, 17mA), 13,

14(.43V, .016A, 3.5x10-3N), 15

8

Jan 8/9

•Skill Set 21.1

• Magnet lab

Read: 20.6 (it’s relevant to the lab)

Check #7: 21: 30(417,000 turns) 31, 32, 33, 34, 35, 36, 37, 38(48kV, 5.6%)

9

Jan 10/11

•PreQuiz 21.2 – Calculating emf, current, transformers

• Magnet lab

 

10

Jan 14/15

•Skill Set 21.2

• Magnet lab

Turn In: PS 20-21: 7 stamps[2]

11

Jan 16/17

• Magnet lab

 

1

Jan 18/22

Atomic Physics!!!

Turn In: Magnet lab

 

 



[1]Counter clockwise = ccw, clockwise = cw

[2] Please start each day’s homework on the top of a new page, and label it clearly 1, 2, 3…etc.  Remember that the expectation is that you spend a half hour working on problems that you can do.  If you are bored, do the harder problems, challenged, the easier.