# HP Cycle 38

## 5/1 - 5/6

W 5/1

Th 5/2

F 5/3

M 5/6

### ๐ข 5: W 5/1 - ๐๐ย  transformers

Today, we'll see how transformers work and how they can be useful. ย  We'll use Faraday's Law of Induction to derive the relationships between primary/secondary numbers of coils, voltage, and current in ideal transformers.ย  (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 ๐ Transformers WS (PH). Finally, we'll do just a few additional transformer problems from section 26.2 in your textbook with ๐ Mastering Physics "Ch26 - transformers" problems #9, 11, 12.ย ย

Presentation:ย  Electromagnetic Induction Presentation continued

Homework:ย  Complete page 1 only of ๐ Transformers WS (PH) and finish the above ๐ Mastering Physics problems by Friday, May 3rd at 10pm.ย  Unit Assessment on all of Electricity & Magnetism (everything since we started talking about charging and electrostatics, including circuits, magnetism, and induction; does not include transformers) on Thursday, May 2nd.ย  One of the best ways to study is to rewatch the Magnetism Videos and the Induction Videos (first 4 videos only).ย ย

Optional Extra Practice:ย  Another transformer video.ย  Do page 2 of FYP: Electromagnetism (ANSWERS).ย ย

### ๐ฉโ 5: Th 5/2 - E&M assessment

Unit Assessment on all of Electricity & Magnetism (everything since we started talking about charging and electrostatics, including circuits, magnetism, and induction; does not include transformers) TODAY!

Homework:ย  Complete page 1 only of ๐ Transformers WS (PH) to be handed in at the beginning of next class, and finish the above ๐ Mastering Physics problems by Friday, May 3rd at 10pm.ย ย

### ๐ 5: M 5/6 - waves with slinkies

APs: US Gov, Art History, Chemistry

Today, we'll start the new unit with a LAB:ย  Waves on Slinkies.ย  We'll learn new vocabulary for talking about waves.ย  We'll see that waves transmit ENERGY, not matter (and we'll see what we mean by that).ย  Focus on answering page 1 - #1-3, and page 2 - #1-5.ย  After finishing the lab, we'll practice our new vocabulary by completing the Anatomy of Waves Worksheet.ย ย

Vocabulary: medium, disturbance, wave pulse, periodic wave, transverse wave, longitudinal wave, equilibrium, crest trough, amplitude, wavelength, compression, rarefaction, period.ย ย

Presentation:ย  Waves & Sound (slides 1-7 today)

Homework: You should have completed the first two pages of LAB:ย  Waves on Slinkies.ย  As a review, finish Anatomy of Waves Worksheet.ย  If you missed class, see the two videos below: