Quantum Tunneling
  • Home
  • Physics 12, SPH4U
    • Module 1: Dynamics >
      • Lesson 1: Motion and Motion Graphs
      • Lesson 2: Equations of Motion
      • Lesson 3: Displacement in Two Dimensions
      • Lesson 4: Velocity and Acceleration in Two Dimensions
      • Lesson 5: Projectile Motion
      • Lesson 6: Relative Motion
      • Lesson 7: Forces and Free Body Diagrams
      • Lesson 8: Newton's Laws of Motion
      • Lesson 9: Applying Newton's Laws of Motion
      • Lesson 10: Forces of Friction
      • Lesson 11: Inertial and Non Inertial Frames of Reference
      • Lesson 12: Centripetal Acceleration
      • Lesson 13: Centripetal Force
      • Module 1 Assessment
    • Module 2: E and P >
      • Lesson 1: Work Done by a Constant Force
      • Lesson 2: Kinetic Energy and Work Energy Theorem
      • Lesson 3: Gravitational Potential Energy
      • Lesson 4: The Law of Conservation of Energy
      • Lesson 5: Elastic Potential Energy and SHM
      • Lesson 6: Springs and Conservation of Energy
      • Lesson 7: Momentum and Impulse
      • Lesson 8: Conservation of Momentum in One Dimension
      • Lesson 9: Collisions
      • Lesson 10: Head-on Elastic Collisions
      • Module 2 Assessment
    • Module 3: Fields >
      • Lesson 1: Newtonian Gravitation
      • Lesson 2: Orbits
      • Lesson 3: Electric Force
      • Lesson 4: Electric Fields
      • Lesson 5: The Milikan Oil Drop Experiment
      • Lesson 6: Magnets
      • Lesson 7: Magnetic Force on Moving Charges
      • Lesson 8: Motion of Charged Particles in Magnetic Fields
      • Module 3 Assessment
    • Module 4: Light >
      • Lesson 1: Properties of Waves and Light
      • Lesson 2: Refraction and Total Internal Reflection
      • Lesson 3: Diffraction and Interference of Water Waves
      • Lesson 4: Interference of Light Waves
      • Lesson 5: Electromagnetic Radiation
      • Module 4 Assessment
    • Module 5: Revolution >
      • Lesson 1: The Special Theory of Relativity
      • Lesson 2: Time Dilation
      • Lesson 3: Consequences of Special Relativity
      • Lesson 4: Quantum Theory
      • Lesson 5: Photons
      • Lesson 6: Matter Waves
      • Module 5 Assessment

Lesson 7: Magnetic Force on Moving Charges

Overview:

In this lesson, we will cover the fourth fundamental force in nature and explore the similarities and differences with the other forces we have studied earlier.

Curriculum Expectations:

Overall Expectations:
D2. Investigate, in qualitative and quantitative terms, gravitational, electric, and magnetic fields, and solve related problems.

Specific Expectations:
D2.1 Use appropriate terminology related to fields, including, but not limited to: forces, potential energies, potential, and exchange particles.

D2.4 Analyze, and solve problems involving, the force on charges moving in a uniform magnetic field (e.g., the force on a current-carrying conductor or a free electron).

D2.5 Conduct a laboratory inquiry or computer simulation to examine the behaviour of a particle in a field (e.g., test Coulomb’s law; replicate Millikan’s experiment or Rutherford’s scattering experiment; use a bubble or cloud chamber).

D3.3 Use field diagrams to explain differences in the sources and directions of fields, including, but not limited to, differences between near- Earth and distant fields, parallel plates and point charges, straight line conductors and solenoids.

Success Criteria:

  1. What is the SI unit for a tesla?
  2. Which of the following forces depend on the speed of a charge: magnetic, electric, or gravitational?
  3. What is the right hand rule for a moving charge in a magnetic field?
  4. If the velocity is south, the magnetic field East, in what direction will the magnetic force be directed? (i) For a positive charge, (ii) For a negative charge.
  5. What are two characteristics that separate the magnetic force from the other forces we have studied?

Time Allocation: 3 hours


Learning Activities:

Read pages 386 - 390 from Nelson 8.2

Magnets and Electromagnets
Explore the interactions between a compass and bar magnet. Discover how you can use a battery and wire to make a magnet! Can you make it a stronger magnet? Can you make the magnetic field reverse?
Picture

In the playlist below, video:
  1. Will show you how to find the direction of the forces of a charged particle in 8 different magnetic fields using the right-hand rule or left-hand rule.
  2. Will calculate the magnitude and direction of the acceleration of a charged particle in a magnetic field.

Practice questions 1 and 2 on page 390.

Task:

Solve questions 2, 4, 6, and 8 from Nelson 8.2 Review on page 391.

Optional Extension: 
  • Solve question 10 on page 391.

Reflect:

Real World Telekinesis
This video will feature the leading physicist Neil Turok, and give you an overview of the different types of fields, and one interpretation of how to think of them.

Additional Resources:

In this final segment on the four fundamental forces of physics, Hank tackles the magnetic force, the second of the two ways in which electromagnetism is apparent in the universe.

Lesson 6
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  • Home
  • Physics 12, SPH4U
    • Module 1: Dynamics >
      • Lesson 1: Motion and Motion Graphs
      • Lesson 2: Equations of Motion
      • Lesson 3: Displacement in Two Dimensions
      • Lesson 4: Velocity and Acceleration in Two Dimensions
      • Lesson 5: Projectile Motion
      • Lesson 6: Relative Motion
      • Lesson 7: Forces and Free Body Diagrams
      • Lesson 8: Newton's Laws of Motion
      • Lesson 9: Applying Newton's Laws of Motion
      • Lesson 10: Forces of Friction
      • Lesson 11: Inertial and Non Inertial Frames of Reference
      • Lesson 12: Centripetal Acceleration
      • Lesson 13: Centripetal Force
      • Module 1 Assessment
    • Module 2: E and P >
      • Lesson 1: Work Done by a Constant Force
      • Lesson 2: Kinetic Energy and Work Energy Theorem
      • Lesson 3: Gravitational Potential Energy
      • Lesson 4: The Law of Conservation of Energy
      • Lesson 5: Elastic Potential Energy and SHM
      • Lesson 6: Springs and Conservation of Energy
      • Lesson 7: Momentum and Impulse
      • Lesson 8: Conservation of Momentum in One Dimension
      • Lesson 9: Collisions
      • Lesson 10: Head-on Elastic Collisions
      • Module 2 Assessment
    • Module 3: Fields >
      • Lesson 1: Newtonian Gravitation
      • Lesson 2: Orbits
      • Lesson 3: Electric Force
      • Lesson 4: Electric Fields
      • Lesson 5: The Milikan Oil Drop Experiment
      • Lesson 6: Magnets
      • Lesson 7: Magnetic Force on Moving Charges
      • Lesson 8: Motion of Charged Particles in Magnetic Fields
      • Module 3 Assessment
    • Module 4: Light >
      • Lesson 1: Properties of Waves and Light
      • Lesson 2: Refraction and Total Internal Reflection
      • Lesson 3: Diffraction and Interference of Water Waves
      • Lesson 4: Interference of Light Waves
      • Lesson 5: Electromagnetic Radiation
      • Module 4 Assessment
    • Module 5: Revolution >
      • Lesson 1: The Special Theory of Relativity
      • Lesson 2: Time Dilation
      • Lesson 3: Consequences of Special Relativity
      • Lesson 4: Quantum Theory
      • Lesson 5: Photons
      • Lesson 6: Matter Waves
      • Module 5 Assessment