SPH4U
We are done with new course content. For the remainder of the semester your task is to go back and review any material you didn't fully understand in the first go-through.
June 11th, 2020 - Work for the Week of June 15th:
NOTHING NEW!
The culminating due date of June 15th will have past. Feel free to go back and review old lessons that you didn't understand fully or just didn't get to in the first go-round.
NOTHING NEW!
The culminating due date of June 15th will have past. Feel free to go back and review old lessons that you didn't understand fully or just didn't get to in the first go-round.
June 4th, 2020 - Work for the week of June 8th:
DO YOUR WEEKLY CHECK IN!!!
"Culminating" - sph4u_culminating_task_covid.docx. DUE JUNE 15th!
This is is! Last lessons of the year!
Lesson 1: (U5 Day 10) Einstein's Relativity: 13.1 & 13.2
Einstein's 1st postulate of Special Relativity: The laws of physics are the same in all inertial (non-accelerating) frames of reference.
-> This means that so long as you're not accelerating with respect to what you're observing, the laws of physics
(i.e. conservation of momentum, conservation of mass & energy...) will apply. This postulate is intuitive. See the
ridiculous example of the exploding turkey on p. 635 in the text.
Einstein's 2nd postulate of Special Relativity: The speed of light is the same (3.00 x 10^8 m/s in a vacuum) in all inertial frames of reference.
-> This is counter-intuitive based on the way velocities add for macroscopic objects. Consider this example:
As a result of these two postulates, it turns out that other quantities (previously thought to be constant in all inertial frames of reference) must vary with respect to speed. These quantities are mass, time, and length.
Lesson 2: (U5 Day 11) Time Dilation, Length Contraction, and Mass Dilation: 13.3 & 13.5
The person in the spaceship would see all of the same effects when observing you while their time, length and mass will appear normal to them.
Watch/interact with "Al's Relativistic Adventure": www.onestick.com/relativity/. This video was the winning entry to Pirelli's (Italian tire maker) contest to explain relativity simply for the 100th anniversary of Special Relativity.
That's all! Go work on your culminating!
DO YOUR WEEKLY CHECK IN!!!
"Culminating" - sph4u_culminating_task_covid.docx. DUE JUNE 15th!
This is is! Last lessons of the year!
Lesson 1: (U5 Day 10) Einstein's Relativity: 13.1 & 13.2
Einstein's 1st postulate of Special Relativity: The laws of physics are the same in all inertial (non-accelerating) frames of reference.
-> This means that so long as you're not accelerating with respect to what you're observing, the laws of physics
(i.e. conservation of momentum, conservation of mass & energy...) will apply. This postulate is intuitive. See the
ridiculous example of the exploding turkey on p. 635 in the text.
Einstein's 2nd postulate of Special Relativity: The speed of light is the same (3.00 x 10^8 m/s in a vacuum) in all inertial frames of reference.
-> This is counter-intuitive based on the way velocities add for macroscopic objects. Consider this example:
- You and your friend are standing still. You throw the ball at 2.0 m/s toward your friend. You will see the ball moving away from you at 2.0 m/s. They will see the ball coming at them at 2.0 m/s.
- You are walking at 1.0 m/s toward your friend and throw the ball at them at 2.0 m/s. You will see the ball moving away from you at 2.0 m/s. They will see the ball coming at them at 3.0 m/s.
- You and your friend are standing still. You shine a flashlight toward your friend. You will see the light moving away from you at 3.00 x 10^8 m/s. They will see the light coming at them at 3.00 x 10^8 m/s.
- You are running at half the speed of light (1.5 x 10^8 m/s) toward your friend. You shine a flashlight toward your friend. You will see the light moving away from you at 3.00 x 10^8 m/s. THEY WILL SEE THE LIGHT COMING AT THEM AT 3.00 x 10^8 m/s!!! No matter what, you will always measure light to travel at 3.00 x 10^8 m/s! You will probably feel that this is wrong but rest assured that there is plenty of evidence that supports this postulate.
As a result of these two postulates, it turns out that other quantities (previously thought to be constant in all inertial frames of reference) must vary with respect to speed. These quantities are mass, time, and length.
- Read Sections 13.1 & 13.2 in the textbook.
Lesson 2: (U5 Day 11) Time Dilation, Length Contraction, and Mass Dilation: 13.3 & 13.5
- Carefully read through the two "Thought Experiments" in Section 13.3. They start with the premise that Einstein's two postulates of special relativity are correct and derive the resultant effect on time and length. A similar derivation can be done with mass.
- In Newtonian or Classical physics, time, length, and mass are all constant. It doesn't matter where you are or what you're doing; 1 hours, 1 meter, and 1 kg will always be the same. This isn't wrong - but it turns out that this "constancy" is just a good approximation when the speed between you and the things you are measuring is small (aka non-relativistic speeds).
- When the speed between you and the things you are measuring gets close to the speed of light (relativistic speeds), this approximation breaks down and the following effects are seen:
- Time dilates. This means that a clock on a spaceship zooming past you will appear to be going too slow.
- Length contracts. This means that the spaceship zooming past you will appear to be "squished" in the direction of travel.
- Mass dilates. This means that the spaceship zooming past you will appear to be heavier.
The person in the spaceship would see all of the same effects when observing you while their time, length and mass will appear normal to them.
Watch/interact with "Al's Relativistic Adventure": www.onestick.com/relativity/. This video was the winning entry to Pirelli's (Italian tire maker) contest to explain relativity simply for the 100th anniversary of Special Relativity.
That's all! Go work on your culminating!
Our school board informed teachers this morning that all YouTube videos accessed by school computers and/or accounts must now be approved by teachers in advance. This notice appears to have been effective immediately.
Given that we are now into culminating and report card season, along with the complete lack of notice, I won't have time to go back through all of our lessons and grant access to all of the YouTube video links. Next week I'll work on approving the videos posted for the "Week of June 1st" and obviously any videos for the last week of lessons will be approved as I post them. Older videos can still be viewed through non-board issued devices using non-board accounts - hopefully you can access a personal device if you need to catch-up and/or review course material.
Given that we are now into culminating and report card season, along with the complete lack of notice, I won't have time to go back through all of our lessons and grant access to all of the YouTube video links. Next week I'll work on approving the videos posted for the "Week of June 1st" and obviously any videos for the last week of lessons will be approved as I post them. Older videos can still be viewed through non-board issued devices using non-board accounts - hopefully you can access a personal device if you need to catch-up and/or review course material.
May 29th, 2020 - Work for the week of June 1st:
DO YOUR WEEKLY CHECK IN!!!
We're almost there...
Here's the plan for the remainder of the year:
Week of June 1st: Momentum of Light, Matter Waves, Bohr Model, Probability, Heisenberg, Quantum Tunneling.
Week of June 8th: Relativity and its effects on Time, Length, and Mass.
"Culminating" - sph4u_culminating_task_covid.docx. DUE JUNE 15th! NOTE THE CHANGE! Start working on this NOW! I learned that I have to have all my marks & report cards done one the 19th - this doesn't give me much time so I won't be able to accept late work.
Lesson 1: (U5 Day7) Momentum of Light and Matter Waves: 12.4 - 12.5
Lesson 2: (U5 Day 8) Bohr Model of the Atom: 12.6
Lesson 3: (U5 Day 9) Probability Waves, Heisenberg, and Quantum Tunnelling: 12.7 - 12.9
DO YOUR WEEKLY CHECK IN!!!
We're almost there...
Here's the plan for the remainder of the year:
Week of June 1st: Momentum of Light, Matter Waves, Bohr Model, Probability, Heisenberg, Quantum Tunneling.
Week of June 8th: Relativity and its effects on Time, Length, and Mass.
"Culminating" - sph4u_culminating_task_covid.docx. DUE JUNE 15th! NOTE THE CHANGE! Start working on this NOW! I learned that I have to have all my marks & report cards done one the 19th - this doesn't give me much time so I won't be able to accept late work.
Lesson 1: (U5 Day7) Momentum of Light and Matter Waves: 12.4 - 12.5
- Note: momentum_of_light_and_matter_waves.docx
- Read Sections 12.4 & 12.5
- Homework: Text p. 628 # 30, 31, 36, 38 (the golf ball referred to is in #36).
Lesson 2: (U5 Day 8) Bohr Model of the Atom: 12.6
- Note: bohr_model.docx
- Read Section 12.6
- Look at the Fendt simulator for the Bohr Model of the Atom: www.walter-fendt.de/html5/phen/bohrmodel_en.htm
- Play with the "Bohr Model" simulator in www.explorelearning.com. Be sure to investigate the "Orbitals", "Energy Levels", and "Energy Steps" tabs.
- Homework: Text p. 629 # 40 - 42.
Lesson 3: (U5 Day 9) Probability Waves, Heisenberg, and Quantum Tunnelling: 12.7 - 12.9
- Read Sections 12.7 - 12.9
- Watch Heisenberg sing: www.youtube.com/watch?v=C4iucctrZbU
- Watch this TEDEd on the Uncertainty Principle: www.youtube.com/watch?v=TQKELOE9eY4
- Watch Crash Course in Modern Physics 2: www.youtube.com/watch?v=qO_W70VegbQ
- If you find all of this confusing - you're not alone. There are some strange, counter-intuitive ideas present in quantum mechanics. Our macroscopic (large scale) existence doesn't visibly exhibit quantum mechanical phenomena so they seem to go against the way we observe the world around us. Wave-particle duality of energy and matter is only "visible" at a microscopic level too small to actually be seen by the human eye.
May 21st, 2020 - Work for the week of May 25th:
PLEASE REMEMBER TO DO YOUR WEEKLY CHECK IN! Send me work owed, post an online comment under our "SPH4U Discussion", or send me an email.
Here's the plan for the remainder of the year:
Week of May 25th: Photoelectric effect, Wave Particle Duality
Week of June 1st: Momentum of Light, Matter Waves, Bohr Model, Probability, Heisenberg, Quantum Tunneling.
Week of June 8th: Relativity and its effects on Time, Length, and Mass.
"Culminating" - sph4u_culminating_task_covid.docx. DUE JUNE 15th! NOTE THE CHANGE! Start working on this NOW! I learned that I have to have all my marks & report cards done one the 19th - this doesn't give me much time so I won't be able to accept late work.
Lesson 1: (U5 Days 1 - 2) Wave or Particle?: 12.1 - 12.2
So after a whole unit about experiments showing that light behaves as a wave, along comes Einstein in 1905 with an experiment that showed light behaving as a particle - this lead to the theory of wave particle duality for both energy AND matter. This lesson introduces the problems with classical/wave theory and the concept of "quanta".
Lesson 2: (U5 Days 3 - 4) Photoelectric Effect: 12.3
Lesson 3: (U5 Day 5) Perimeter Video on Wave Particle Duality:
PLEASE REMEMBER TO DO YOUR WEEKLY CHECK IN! Send me work owed, post an online comment under our "SPH4U Discussion", or send me an email.
Here's the plan for the remainder of the year:
Week of May 25th: Photoelectric effect, Wave Particle Duality
Week of June 1st: Momentum of Light, Matter Waves, Bohr Model, Probability, Heisenberg, Quantum Tunneling.
Week of June 8th: Relativity and its effects on Time, Length, and Mass.
"Culminating" - sph4u_culminating_task_covid.docx. DUE JUNE 15th! NOTE THE CHANGE! Start working on this NOW! I learned that I have to have all my marks & report cards done one the 19th - this doesn't give me much time so I won't be able to accept late work.
Lesson 1: (U5 Days 1 - 2) Wave or Particle?: 12.1 - 12.2
So after a whole unit about experiments showing that light behaves as a wave, along comes Einstein in 1905 with an experiment that showed light behaving as a particle - this lead to the theory of wave particle duality for both energy AND matter. This lesson introduces the problems with classical/wave theory and the concept of "quanta".
- Read Section 12.1 - Talks about things the classical/wave theory doesn't explain.
- Read Section 12.2 - For waves, the amplitude (height) is related to the energy of a wave. Think about water waves: a taller wave has more destructive power. In 1900 Max Plank found out that this is not the case for light. The amplitude of light is related to its brightness. But brighter light just means MORE light, not more energy. Plank found that the energy of light was instead related to its wavelength. Shorter wavelengths (i.e. x-rays, gamma rays) had the highest energies. Make note of the energy formulas in this section. This lead to the "ultraviolet catastrophe" - as wavelengths approach zero, energy should approach infinity according to the formula E = hc/λ.
- Watch this goofy cartoon about Plank and Quantization: www.youtube.com/watch?v=Z2xcffCXUVc&feature=youtu.be
- Watch Professor Dave explain the Quantization of Energy: www.youtube.com/watch?v=7BXvc9W97iU&vl=en
- Homework: Text p. 627 # 1, 22.
- Solution: Text p. 627 # 22: 627_22.jpg
Lesson 2: (U5 Days 3 - 4) Photoelectric Effect: 12.3
- Photoelectric Effect Lab: photoelectric_effect.docx
- PhET Photoelectric Effect Simulator: phet.colorado.edu/en/simulation/photoelectric
- Watch Professor Dave explain the Photoelectric Effect: www.youtube.com/watch?v=MFPKwu5vugg.
Lesson 3: (U5 Day 5) Perimeter Video on Wave Particle Duality:
- Watch this Perimeter Institute videos about wave particle duality: www.youtube.com/watch?v=wihrAjFXg3o, www.youtube.com/watch?v=uhyKN4utUkA , www.youtube.com/watch?v=qaU1tZ4z5tc.
May 14th, 2020 - Work for the week of May 19th:
PLEASE REMEMBER TO DO YOUR WEEKLY CHECK IN! Send me work owed, post an online comment under our "SPH4U Discussion", or send me an email.
This week doesn't have new content. You will be writing an "essay" about the experiments that show light behaves as a wave. Next week we'll be starting our last unit on modern physics.
Light as a wave essay: sph4u_light_as_a_wave.docx. Due Monday, May 25th.
PLEASE REMEMBER TO DO YOUR WEEKLY CHECK IN! Send me work owed, post an online comment under our "SPH4U Discussion", or send me an email.
This week doesn't have new content. You will be writing an "essay" about the experiments that show light behaves as a wave. Next week we'll be starting our last unit on modern physics.
Light as a wave essay: sph4u_light_as_a_wave.docx. Due Monday, May 25th.
May 8th, 2020 - Work for the week of May 11th:
PLEASE REMEMBER TO DO YOUR WEEKLY CHECK IN! Send me work owed, post an online comment under our "SPH4U Discussion", or send me an email.
This week we will be looking at Thin Film Interference and Single Slit Diffraction.
Lesson 1: (U4 Day 12) Thin Film Interference: (11.6)
Lesson 2: (U4 Day 13) Single Slit Diffraction: (11.7 & 11.8)
PLEASE REMEMBER TO DO YOUR WEEKLY CHECK IN! Send me work owed, post an online comment under our "SPH4U Discussion", or send me an email.
This week we will be looking at Thin Film Interference and Single Slit Diffraction.
Lesson 1: (U4 Day 12) Thin Film Interference: (11.6)
- Note: thin_film_interference.docx.
- This video of a worked example may also be helpful: www.youtube.com/watch?v=g2uETbwBQ_Q
- This simulator allows you to visually explore the effect of each quantity involved: ophysics.com/l6.html
- Homework: Text p. 581 #40 - 42.
Lesson 2: (U4 Day 13) Single Slit Diffraction: (11.7 & 11.8)
- Note: single_slit_diffraction.docx
- This simulator will help you visualize how wavelength and slit width affect the diffraction pattern produced: www.walter-fendt.de/html5/phen/singleslit_en.htm
- Homework: Text p. 581 #47 - 49.
April 28th, 2020 - Work for the week of May 4th:
PLEASE REMEMBER TO DO YOUR WEEKLY CHECK IN! Send me work owed, the comprehension check (at the bottom of this week's stuff), post an online comment under our "SPH4U Discussion", or send me an email.
The purpose of the Light Unit is to go through several experiments that show that light behaves as wave. This is in preparation for our last unit on Modern Physics where we will be looking at the wave-particle duality of light. The main experiments showing light is a wave include:
Lesson 1: (U4 Day 3 - 5) Polarization: (10.5 - 10.7)
5. Read Section 10.5 - 10.7, consider the following questions as you read:
Lesson 2: (U4 Day 6 & 7) Young's Double Slit Experiment: (11.1 - 11.4)
PLEASE REMEMBER TO DO YOUR WEEKLY CHECK IN! Send me work owed, the comprehension check (at the bottom of this week's stuff), post an online comment under our "SPH4U Discussion", or send me an email.
The purpose of the Light Unit is to go through several experiments that show that light behaves as wave. This is in preparation for our last unit on Modern Physics where we will be looking at the wave-particle duality of light. The main experiments showing light is a wave include:
- Polarization
- Young's Double Slit Experiment
- Thin Film Interference
- Single Slit Diffraction
Lesson 1: (U4 Day 3 - 5) Polarization: (10.5 - 10.7)
- Note: polarization.docx. I'm trying something new - I've posted the note as a Word document instead of having it hand written. You'll need the textbook as you go through the note since I've referenced diagrams instead of trying to re-draw them. I'm also getting lazy and I didn't make a video - why reinvent the wheel when other people have already made videos more interesting than mine? Let me know if you have a strong feelings about this being better or worse...
- Another written source of the same information: www.physicsclassroom.com/class/light/Lesson-1/Polarization
- This video may also be helpful: www.youtube.com/watch?v=gP751qpm4n4
- Homework: Text p. 527 # 51, 52, 53, 61.
5. Read Section 10.5 - 10.7, consider the following questions as you read:
- How are polarizing filters used in photography?
- How are 3-D movies produced?
- Why do we wear 3-D glasses to watch these movies?
- How are polarizing filters used in LCD displays?
- What is birefringence and how is it used by engineers?
- What is scattering?
- Why is the sky blue? What does this have to do with resonance?
- Why is the sky a different colour at sunset?
Lesson 2: (U4 Day 6 & 7) Young's Double Slit Experiment: (11.1 - 11.4)
- Read Sections 11.1 & 11.2 to remind yourself about interference of waves (studied last year in sound). Pay attention to why/when constructive and destructive interference occurs - this principle is the basis of Young's Double Slit Experiment.
- Watch "The Original Double Slit Experiment": www.youtube.com/watch?v=Iuv6hY6zsd0
- Note: young.docx. Again, you'll need to have your textbook handy to refer to diagrams as you go through the note.
- Homework: Text p. 579 # 26, 29, 32
- Comprehension Check: With reference to formulas and diagrams, explain why colours are seen in the double slit experiment when white light is used as a source. What is the order of colours (moving out from the middle) and why does this occur? Send me your response - 1 page maximum.
April 23rd, 2020 - Work for the week of April 27th:
Note that I require a weekly check in from each student - think of this as our online attendance. The check in can be in the form of submitted work, a comment posted online, or an email - basically I just need to hear from you in some way. If I don't get anything, I'll have to send out an "Are you OK?" email. If I don't hear back from that I have to refer you to student success - please save us all a lot of work and keep in touch.
Lesson 1: Preliminary FIELDS Graphic Organizer: fields_preliminary_graphic_organizer.docx
Complete the assignment above and submit it by MONDAY, MAY 4th. May the fourth (field) be with you!
This completes Unit 3.
Unit 4 Outline: sph4u_light.docx
Lesson 2 (U4 Days 1&2): Light and Waves (mostly review of Gr. 10 Optics and Gr. 11 Waves): 10.1 - 10.4
Note that I require a weekly check in from each student - think of this as our online attendance. The check in can be in the form of submitted work, a comment posted online, or an email - basically I just need to hear from you in some way. If I don't get anything, I'll have to send out an "Are you OK?" email. If I don't hear back from that I have to refer you to student success - please save us all a lot of work and keep in touch.
Lesson 1: Preliminary FIELDS Graphic Organizer: fields_preliminary_graphic_organizer.docx
Complete the assignment above and submit it by MONDAY, MAY 4th. May the fourth (field) be with you!
This completes Unit 3.
Unit 4 Outline: sph4u_light.docx
Lesson 2 (U4 Days 1&2): Light and Waves (mostly review of Gr. 10 Optics and Gr. 11 Waves): 10.1 - 10.4
- Read 10.1 - 10.4 and make your own Cornell notes.
- The following videos and simulators serve to reinforce the textbook introduction to light:
- Watch Kurzgesagt Light: www.youtube.com/watch?v=IXxZRZxafEQ
- Watch Light Crash Course: www.youtube.com/watch?v=jjy-eqWM38g
- Explore this PhET radio wave simulator: phet.colorado.edu/en/simulation/legacy/radio-waves
- Explorelearning: Basic Prism (Snell's Law Review)
- Explorelearning: Bohr Model
- Homework: Text p. 526 #23, 25, 28, 34af, 36, 41, 46, 48.
April 22nd, 2020
I've gone through all of the research assignments that have been submitted and gave them all a level 4 (no specific mark). I think that you've all mastered this form of report and we can check off the "STSE" box for the course - that was your last research assignment.
April 21st, 2020
MIDTERM MARKS will be available on "MyBlueprint". I submitted these last week and they were based on your Unit 1 marks only - note that I CANNOT go back into the system to change anything. Since we weren't able to complete Unit 2 before the shutdown, I did not have enough entries to drop your lowest. I did include the 2% Perimeter Institute bonus for those of you who did the presentations.
Class average: 86%
Class median: 87%
These are higher than they usually are because Unit 1 is the "easiest" as it includes a lot of review from Grade 11. Usually the remaining unit marks are a bit lower when all assessments are completed as outlined in the course overview. Given that tests and quizzes are not currently being done (since I cannot ensure individual work), I am still in the process of determining how to fairly assess your skills. If anyone has any ideas/suggestions that could be fairly administered to all and would not result in a crippling workload for me, please let me know.
I've gone through all of the research assignments that have been submitted and gave them all a level 4 (no specific mark). I think that you've all mastered this form of report and we can check off the "STSE" box for the course - that was your last research assignment.
April 21st, 2020
MIDTERM MARKS will be available on "MyBlueprint". I submitted these last week and they were based on your Unit 1 marks only - note that I CANNOT go back into the system to change anything. Since we weren't able to complete Unit 2 before the shutdown, I did not have enough entries to drop your lowest. I did include the 2% Perimeter Institute bonus for those of you who did the presentations.
Class average: 86%
Class median: 87%
These are higher than they usually are because Unit 1 is the "easiest" as it includes a lot of review from Grade 11. Usually the remaining unit marks are a bit lower when all assessments are completed as outlined in the course overview. Given that tests and quizzes are not currently being done (since I cannot ensure individual work), I am still in the process of determining how to fairly assess your skills. If anyone has any ideas/suggestions that could be fairly administered to all and would not result in a crippling workload for me, please let me know.
April 17th, 2020 - Work for Week of April 20th:
Lesson 1 (U3 Day 11): RHR 1 & 2: 9.4
This lesson is a review of Gr. 11 - no note or homework, just the video.
Video Lesson: www.youtube.com/watch?v=RImtFaUCHU0
Lesson 2 (U3 Day 12): RHR 3 & Magnetic Force Calculations: 9.5
Video Lesson: www.youtube.com/watch?v=M_72lJapXPM (*Note that there are a couple of verbal oopsies right at the start where I read my own writing incorrectly - what's written is correct).
Notes: magneticforcea.jpg magneticforceb.jpg
Homework: Read Section 9.5, Text p. 476 #23, 29, 32, 34, 37.
Homework Solutions: 476_32.jpg (I got different answers than the text - can anyone find a mistake or did you get the same as me? Also, I don't know why they expressed the units for b) as N/kg when m/s^2 is equivalent and more straightforward.) 477_34.jpg 477_37.jpg
Lesson 3 (U3 Day 13): Faraday & Induction: 9.6 & 9.7
Read Sections 9.6 & 9.7 - make note of the following:
5. Text p. 470 Fig. 9.49 and Text p. 472 Fig. 9.50.
PhET Simulator: phet.colorado.edu/en/simulation/faraday
Lesson 4 (U3 Day 14): Particle Accelerators:
Crash Course Magnetism: www.youtube.com/watch?v=s94suB5uLWw (Reviews Lesson 3, but note that the RHRs are a bit different and it goes a bit beyond the scope of our course with its use of integrals).
Particle Accelerators: Large Hadron Collider: www.youtube.com/watch?v=328pw5Taeg0
Professor Dave explains the Standard Model of Particle Physics: www.youtube.com/watch?v=2ynMmhqVGx4
Lesson 1 (U3 Day 11): RHR 1 & 2: 9.4
This lesson is a review of Gr. 11 - no note or homework, just the video.
Video Lesson: www.youtube.com/watch?v=RImtFaUCHU0
Lesson 2 (U3 Day 12): RHR 3 & Magnetic Force Calculations: 9.5
Video Lesson: www.youtube.com/watch?v=M_72lJapXPM (*Note that there are a couple of verbal oopsies right at the start where I read my own writing incorrectly - what's written is correct).
Notes: magneticforcea.jpg magneticforceb.jpg
Homework: Read Section 9.5, Text p. 476 #23, 29, 32, 34, 37.
Homework Solutions: 476_32.jpg (I got different answers than the text - can anyone find a mistake or did you get the same as me? Also, I don't know why they expressed the units for b) as N/kg when m/s^2 is equivalent and more straightforward.) 477_34.jpg 477_37.jpg
Lesson 3 (U3 Day 13): Faraday & Induction: 9.6 & 9.7
Read Sections 9.6 & 9.7 - make note of the following:
- Magnetic force can act as centripetal force (aurora borealis and mass spectrometers).
- Mass spectrometer function and formulas.
- Faraday's Law and Lenz's Law (these are Gr. 11 review).
- Maxwell's equations - these have more complicated mathematical expressions but can be summed up as:
- Electric field can be used to figure out what charges are where.
- All field lines follow similar rules except there are no magnetic monopoles.
- Moving magnets create electric fields.
- Moving charges create magnetic fields.
5. Text p. 470 Fig. 9.49 and Text p. 472 Fig. 9.50.
PhET Simulator: phet.colorado.edu/en/simulation/faraday
- Explore "Pickup coil" - investigate effects of speed, # coils, and loop area on current.
- Explore "Electromagnet" - investigate effect of voltage and #loops on magnetic field
- Explore "Generator" - investigate effect of RPM, #loops, and loop area on current.
Lesson 4 (U3 Day 14): Particle Accelerators:
Crash Course Magnetism: www.youtube.com/watch?v=s94suB5uLWw (Reviews Lesson 3, but note that the RHRs are a bit different and it goes a bit beyond the scope of our course with its use of integrals).
Particle Accelerators: Large Hadron Collider: www.youtube.com/watch?v=328pw5Taeg0
Professor Dave explains the Standard Model of Particle Physics: www.youtube.com/watch?v=2ynMmhqVGx4
April 8th, 2020 - Work for Week of April 13th:
Work through the stuff below at your own pace and let me know if you need any clarification. In my online travels I found the following site: ophysics.com/e3.html. It has some neat simulators related to our course material. Have a look if you've got some time and/or are looking for additional resources. BTW, I just watched a couple of my own videos and I'd like to apologize for all the "ums"... I'll work on that next week.
Lesson 1 (U3 Day 7): Electric Field Strength of Parallel-Plates: 8.8
Professor Dave Reviews Electric Potential, Current, and Resistance: www.youtube.com/watch?v=XWlZ9bfGIoI
Video Lesson: www.youtube.com/watch?v=kluLf0GphOY
Notes: millikana.jpg millikanb.jpg
Animated Explanation: www.youtube.com/watch?v=nwnjYERS66U
Homework: Text p. 429 # 84, 85, 87, 90.
Research Assignment - DUE MONDAY APRIL 20th.
Note that you will be preparing a REPORT for this assignment with a 5 page, double spaced MAXIMUM:
sph4u_u3_research_assignment_online.docx.
You can work in pairs if you can manage it or on your own - no groups of three.
Lesson 2 (U3 Day 10): Magnetism: 9.1 - 9.3
Pretty much as in the Unit 3 Outline:
Work through the stuff below at your own pace and let me know if you need any clarification. In my online travels I found the following site: ophysics.com/e3.html. It has some neat simulators related to our course material. Have a look if you've got some time and/or are looking for additional resources. BTW, I just watched a couple of my own videos and I'd like to apologize for all the "ums"... I'll work on that next week.
Lesson 1 (U3 Day 7): Electric Field Strength of Parallel-Plates: 8.8
Professor Dave Reviews Electric Potential, Current, and Resistance: www.youtube.com/watch?v=XWlZ9bfGIoI
Video Lesson: www.youtube.com/watch?v=kluLf0GphOY
Notes: millikana.jpg millikanb.jpg
Animated Explanation: www.youtube.com/watch?v=nwnjYERS66U
Homework: Text p. 429 # 84, 85, 87, 90.
Research Assignment - DUE MONDAY APRIL 20th.
Note that you will be preparing a REPORT for this assignment with a 5 page, double spaced MAXIMUM:
sph4u_u3_research_assignment_online.docx.
You can work in pairs if you can manage it or on your own - no groups of three.
Lesson 2 (U3 Day 10): Magnetism: 9.1 - 9.3
Pretty much as in the Unit 3 Outline:
- Professor Dave Explains Magnets: https://www.youtube.com/watch?v=IgtIdttfGVw
- Read through 9.1 – 9.3 and answer questions in this Word file for your own notes: magnetism_online.docx
April 7th, 2020
Apologies for not having the momentum labs marked yet! I had today set aside for marking and have been at it since 8:00 this morning (currently 2:30 p.m.) getting SNC2P and SPH3U done. Given that I'm starting to go crosseyed, I am now planning on getting to your labs tomorrow...
April 3rd, 2020 - Work for Week of April 6th.
We are now starting Unit 3. I'm struggling with keeping your work to a minimum (3 hours?!!) while still providing enough to prepare you for your next steps. If you are unable to do everything that's being requested please prioritize the lessons first, assignments/labs second, and then homework last. The following is the work for the week of April 6th (all shown directly below, you don't have to scroll down to Unit 3). I will be posting solutions throughout the week upon request.
Lesson 1 (U3 Day 1): Electrostatics Sections 8.1 - 8.3
Video Lesson: www.youtube.com/watch?v=uHYK1C6fGck
Notes: electrostaticsa.jpg electrostaticsb.jpg electrostaticsc.jpg electrostaticsd.jpg
Homework: Text p. 425 #34, 39, 42, 43.
Coulomb Force Lab - DUE MONDAY APRIL 13th.
You will need to access www.explorelearning.com to complete this lab: sph4u_coulomb_lab.docx
Let me know if you need the course code (if you've never registered), or your username and password if you forgot.
Lesson 2 (U3 Day 4 & 5): Coulomb's Law and Electric Fields Sections 8.4 - 8.6
Video Lesson: www.youtube.com/watch?v=Ks42_vHwFZY
Professor Dave Electric Charge and Electric Fields: https://www.youtube.com/watch?v=VFbyDCG_j18&vl=en
Electrostatic force and field line simulations:
http://phet.colorado.edu/sims/charges-and-fields/charges-and-fields_en.html, http://www.cco.caltech.edu/~phys1/java/phys1/EField/EField.html
Notes: fieldsa.jpg fieldsb.jpg fieldsc.jpg fieldsd.jpg fieldse.jpg
Homework: Text p. 425 # 26, 29, 53, 55. Text p. 427 # 59, 60 61, 66, 67.
Homework Solutions: 423_26.jpg 424_29.jpg 426_53.jpg 426_55a.jpg 426_55b.jpg 427_61.jpg 427_66.jpg 427_67.jpg
Lesson 3 (U3 Day 6): Electric Potential and Electric Potential Energy Sections 8.7 & 8.8
Video Lesson: www.youtube.com/watch?v=8ytAkd3Tl_U
Notes: potentiala.jpg potentialb.jpg
Homework: Text p. 427 # 71, 74, 76, 81.
Homework Solutions: 427_74.jpg 428_76.jpg 428_81.jpg
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April 1st, 2020
For the next unit, I will be modifying our unit outline to reduce the number of expectations and the corresponding hours of work. Starting on Monday, I hope to have a new Unit 3 Outline posted - no new work will be posted until then. I'm also going to be cleaning up this website to try to make it easier to navigate. As a result, some things may disappear if they are no longer needed or may be put into folders. Please check back on Monday.
March 26th, 2020
SUMMARY:
Spring Fling Due: Monday March 30th, 2020.
Momentum Lab Due: Wednesday, April 1st, 2020
*Data sheets for lab analysis handed out in class.
Day 11 Video Lesson: www.youtube.com/watch?v=vo7IJHfT74w&feature=youtu.be
Day 11 Video Homework Hints: www.youtube.com/watch?reload=9&v=cNCks6GbHvU&feature=youtu.be
Day 11 Note Pictures:
Day 11 Video Homework Hints: www.youtube.com/watch?reload=9&v=cNCks6GbHvU&feature=youtu.be
Day 11 Note Pictures:
- Day 11 Page 1: elastica.jpg
- Day 11 Page 2: elasticb.jpg
- Day 11 Page 3: elasticc.jpg
- Day 11 Page 4: elasticd.jpg
- p. 279 # 64 Video: www.youtube.com/watch?v=gj7Nzxv-zMc Note: 279_64.jpg
Day 12 Video Lesson: www.youtube.com/watch?v=SqklAz7Ccgc
Day 12 Video Homework Hints: www.youtube.com/watch?v=m1x4BN5X7cA
Day 12 Note Pictures:
Day 12 Video Homework Hints: www.youtube.com/watch?v=m1x4BN5X7cA
Day 12 Note Pictures:
- Day 12 Page 1: gravitya.jpg
- Day 12 Page 2: gravityb.jpg
- Day 12 Page 3: gravityc.jpg
- p. 313 #14 Video: www.youtube.com/watch?v=NfdwUaDO2jM Notes: 313_14.jpg 313_14_continuted.jpg
- p. 314 #16: Video: www.youtube.com/watch?v=nYl1UfAw6Pc Notes: 314_16.jpg
- p. 314 #17: Video: www.youtube.com/watch?v=QpUiAkO4LO8 Notes: 314_17.jpg
- p. 314 #18: Video: www.youtube.com/watch?v=tezPY7XoaYI Notes: 314_18.jpg
Day 14 Video Lesson: www.youtube.com/watch?v=3qOmw0WXqro
Day 14 Note Pictures:
Day 14 Note Pictures:
- Day 14 Page 1: orbitsa.jpg
- Day 14 Page 2: orbitsb.jpg
- Day 14 Page 3: orbitsc.jpg
- Day 14 Page 4: orbitsd.jpg
- p. 314 # 21 Video: www.youtube.com/watch?v=oMRSnpJ0k7k Notes: 314_21.jpg
- p. 314 # 29 Note: 314_29.jpg
Day 15 Video Lesson: www.youtube.com/watch?v=52XN38EOOv8
Day 15 Note Pictures: Day 15 Homework Solutions:
Day 15 Note Pictures: Day 15 Homework Solutions:
- p. 314 #31 Notes: 314_31.jpg
Unit 2 Preliminary Graphic Organizer: graphic_organizer.jpg
Old Unit 2 Test TIPS and MC (just for practice purposes): sph4u_test2_practice_2020.docx
Practice Test Answers:
Old Unit 2 Test TIPS and MC (just for practice purposes): sph4u_test2_practice_2020.docx
Practice Test Answers:
- TIPS 1ab: practicetesta.jpg
- TIPS 1c: practicetestb.jpg
- TIPS 2: practicetestc.jpg
- MC 1: practicetestd.jpg
- MC 2 & 3: practiceteste.jpg
*The two assignments for this unit are currently scheduled to be completed during class time.
*For your culminating you can choose a 30% exam, or one of the projects below for 10% and have a 20% exam.