SPH 4U - Unit 3 - Electric, Gravitational and Magnetic Forces

Electrical, Gravitational and Magnetic Forces are all non-contact forces.  The 'force' and 'energy' formulas for electrical and magnetic forces look similar too.  We remind ourselves of what we learned about gravity (especially as we move into space beyond earth) as we looked at electrostatic forces (Chapter 8), magnetic forces (Chapter 9) and how the 2 interact (Chapter 9).   At the very end, we look at how Maxwell was able to propose that light was a form of self-propogating electromagnetic wave!

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em_historical_perspective.rtf
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Electric Fields

coulombs_law.pdf
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field_mapping_8.5.rtf
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electric_field_strength.rtf
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electric_potential.pdf
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electric_potential_-_fundamentals.rtf
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electric_potential_-_fundamentals_-_answers.rtf
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electric_energy_chart_questions.rtf
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Rutherford's Gold Foil Experiment - humorous video
and a more serious video.      

cathode_ray_tube.pdf
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what_is_ev.pdf
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conservation_of_energy_and_ee.pdf
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millikans_math_worksheet.rtf
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Magnetic Fields & Electromagnetism

magnets__magnetic_field_review_9.1-9.4.rtf
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rhr1__rhr_2___9.4.rtf
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rhr_3_motor_principle__9.5.rtf
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rhr_3_-_mass_spectrometer_etc..rtf
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mass_spectrometer_problems.rtf
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Click here for a demo of Lenz's Law - not unlike the one we did in class!  

Presentation - assignment

dear_jane.pdf
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g_e_m_forces_presentation.pdf
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apa_documentation_style.rtf
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Simulations

Play Electric Field Hockey - a phet simulation to help you understand electric field mapping.

Understanding Magnetic Fields - click here for a useful website with several good pictures. 

How a CRT TV works - go through the 4 web pages.  Very visual - very helpful!

Electromagnets - click here to see how electromagnets (and generators) work. This is a phet site- always good!

Large Hadron Accelerator RAP
This is a very fun & scientifically sound rap about a particle accelerator. Just click on 'accelerator rap' to go to the video.
What's a Higg's Boson?  Click here.....or here.....

Videos

Chapter  reviews

review_for_chapter_8.rtf
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gem_review.pdf
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TRIUMF - Canadian!

TRIUMF is a Canadian particle accelerator in Vancouver.
Here are some video clips.
Overview of TRIUMF       
Physics in Action  
TRIUMF - lesson #1    - creating hydrogen ion
TRIUMF - lesson #2    - initial acceleration (Ee)
TRIUMB - lesson #3   - electrostatic beam steering 
TRIUMF - lesson #4   - circular motion in mag. field
TRIUMF - lesson #5    - magnetic beam steering