Embedded Files
🟢 8: T 5/19🎯 - magnetism assessment
🟢 8: T 5/19🎯 - magnetism assessment
Tues 5/19
NJSLA Testing
Test - 7:40 - 9:35 (115)
1 - 9:40 - 10:20 (40)
2 - 10:25 - 11:06 (40)
3 - 11:10 - 11:50 (40)
L - 11:54 - 12:35 (41)
4 - 12:40 - 1:20 (40)
5 - 1:25 - 2:05 (40)
6 - 2:10 - 2:50 (40)
QUIZ on basic magnetism (magnetic field lines, force on a moving charge and current carrying wire, field created by current, mass spectrometer, right hand rules, force equations) TODAY.
Homework: Unit Assessment on all of Electromagnetism on Wednesday, May 27th.
🟩❗8: W 5/20🎯 - induction demos
🟩❗8: W 5/20🎯 - induction demos
Wed 5/20
NJSLA Testing
Test - 7:40 - 10:35 (175)
1 - 10:40 - 11:10 (30)
2 - 11:15 - 11:45 (30)
3 - 11:50 - 12:20 (30)
L - 12:25 - 1:06 (41)
4 - 1:10 - 1:40 (30)
5 - 1:45 - 2:15 (30)
6 - 2:20 - 2:50 (30)
Today, we'll take a look at a bunch of induction demos that we skipped during the unit.
If there's any time remaining, then you'll have time to work on problem solving.
Homework: Unit Assessment on all of Electromagnetism on Wednesday, May 27th.
💚 8: Th 5/21🎯 - NO CLASS
💚 8: Th 5/21🎯 - NO CLASS
Thurs 5/21
NJSLA Testing & Assemblies
Test - 7:40 - 10:35 (175)
L - 10:40 - 11:30 (50)
1 - 11:35 - 12:35 (60)
2 - 12:40 - 1:40 (60)
3 - 1:45 - 2:50 (65)
No class today. Class assemblies.
Homework: Unit Assessment on all of Electromagnetism on Wednesday, May 27th.
Electromagnetism OPTIONAL Enrichment Topics
Electromagnetism OPTIONAL Enrichment Topics
Transformers
Transformers
Today, we'll see how transformers work and how they can be useful. We'll use Faraday's Law of Induction to derive the relationships between primary/secondary numbers of coils, voltage, and current in ideal transformers. (Know the ideal transformer equation.)
Watch this video on how transformers work:
You can check out this demo to see a transformer in action:
Then, we'll practice ideal transformer problems by doing page 1 only of 📄 Transformers WS (PH).
Presentation: Electromagnetic Induction Presentation continued
Optional Extra Practice: Another transformer video. Do page 2 of FYP: Electromagnetism (ANSWERS). Section 26.2 in your textbook 📖 Mastering Physics "Ch26 - transformers" problems #9, 11, 12.
Generators
Generators
Today, we'll take a look at how generators work. We'll explore some real life generators and do a 📄 Thinking Lab about Generators. By doing this lab, you should have a good idea about how generators work.
Here's how generators work:
Check out this homemade generator:
Power lost in transport
Power lost in transport
Today, we'll review concepts from last unit on circuits to answer questions about power transmission. You may read page 922 in your textbook to start. Write out your own solution to example 26.3 on that page. Then do page 2 of 📄 Transformers WS (PH). Finally, complete the questions in Power Lost in the Transport of Power after reading the first two pages of this packet. Imagine the circuit in the questions is an AC circuit with two resistors as shown:
Motors
Motors
Today, we'll try to use what we know about generators to try to understand motors. How are motors and generators the same? How are they different? Use your guided explanation of generators as guide to explaining how motors work. If you need help, watch the following video:
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