PHY 131

ASU

Course Overview

Lessons & Practice

I. Welcome

1. Electrostatic Forces and Electric Fields

4hr

1.1.1. Properties of Charge2 min

1.1.2. Conductors, Insulators, and Induced Charge2 min

1.1.3. Practice: Electrical Grounding1 min

1.1.4. Practice: Conductors, Insulators, and Induced Charge49 sec

1.2.1. Coulomb's Law3 min

1.2.2. Example: Coulomb's Law3 min

1.2.3. Practice: Coulomb's Law3 min

1.2.4. Practice: Square of Charges3 min

1.2.5. Practice (with vectors)2 min

1.3.1. Electric Field3 min

1.3.2. Electric Field Lines1 min

1.3.3. Example: Electric Field Lines 4 min

1.3.4. Example: Sketching Electric Field Lines 1 min

1.3.5. Practice: Drawing Electric Field Lines2 min

1.4.1. Electric Field of a Point Charge5 min

1.4.2. Principle of Superposition2 min

1.4.3. Example: Electric Field from Two Point Charges8 min

1.4.4. Practice: Electric Field8 min

1.4.5. Practice: Electric Field12 min

1.5.1. Motion of a Charged Particle in an Electric Field2 min

1.5.2. Practice: Electron Moving Between Two Plates7 min

1.5.3. Practice: Electric Field and Kinematics5 min

1.6.1. Electric Dipoles3 min

1.6.2. Example: Force and Torque on Electric Dipoles3 min

1.6.3. Practice: Electric field from dipoles11 min

1.6.4. Torque and potential energy2 min

1.7.1. Finding Electric Field with Integrals3 min

1.7.2. Example: Electric Field from a Rod9 min

1.7.3. Example: Electric Field from a Rod (off-axis)

1.7.4. Practice: Rod with Nonlinear Charge Density8 min

1.7.5. Practice: Rod with Positive and Negative Charge9 min

1.7.6. Practice: Rod Electric Field Without Symmetry14 min

1.8.1. Example: Electric Field of a Ring4 min

1.8.2. Example: Electric Field of a Disk8 min

1.8.3. Practice: Electric Field at the Center of a Half-Ring4 min

1.9.1. Electric Flux2 min

1.9.2. Example: Electric Flux4 min

1.9.3. Practice: Non-Uniform Flux Through a Round Surface (hard!)6 min

1.10.1. Properties of Conductors1 min

1.10.2. Example: Charges on a Hollow Conducting Sphere58 sec

1.10.3. Practice: Surface Charge Density of a Cylinder2 min

1.11.1. Electric Fields of Special Charge Distributions5 min

1.11.2. Practice: Two Line Charges3 min

1.11.3. Practice: Four Parallel Charged Plates6 min

1.12.1. Gauss’s Law3 min

1.12.2. Example: Gauss's Law and Electric Flux4 min

1.12.3. Example: Charges on a Hollow Conducting Sphere57 sec

1.12.4. Practice: Gauss's Law with a Cube3 min

1.13.1. Gauss's Law with Spherical Symmetries1 min

1.13.2. Example: Gauss's Law for a Spherical Symmetry3 min

1.13.3. Practice: Charges on a Hollow Conducting Sphere4 min

1.13.4. Practice: Gauss's Law for a Spherical Insulator10 min

1.13.5. Practice: Electric Field with an Off-Center Spherical Cavity (hard!)11 min

1.14.1. Gauss's Law with Cylindrical Symmetries2 min

1.14.2. Example: Electric Field from an Infinite Line of Charge3 min

1.14.3. Practice: Concentric Cylindrical Shells4 min

1.14.4. Practice: Electric Field of an Insulating Cylindrical Shell4 min

1.15.1. Gauss's Law with Planar Symmetries2 min

1.15.2. Example: Electric Field from an Infinite Plane of Charge5 min

1.15.3. Practice: Electric Field of a Thick Slab4 min

1.Q. Checkpoint Quiz5 Qns

1.P.1. Suspended charges

1.P.2. Three point charges

1.P.3. Charges in equilibrium

1.P.4. Placing a third charge - x-axis11 min

2. Electric Potential and Potential Energy

3hr

2.1.1. Electric Potential Energy and Work4 min

2.1.2. Practice: Electric potential energy and three charges1 min

2.1.3. Practice: Electric Potential Energy4 min

2.2.1. Electric Potential Energy - Integral Definition5 min

2.2.2. Practice: Electric Potential Energy of a Variable Field6 min

2.2.3. Practice: Electric Potential Energy of a Dipole4 min

2.2.4. Practice: Electric Potential Energy of a Continuous Rod11 min

2.3.1. Electric Potential2 min

2.3.2. Example: Electric Potential2 min

2.3.3. Electron volts1 min

2.4.1. Electric Potential of Continuous Charge Distributions2 min

2.4.2. Example: Electric Potential of a Rod (on-axis)4 min

2.4.3. Practice: Electric Potential of a Rod (off-axis)

2.4.4. Practice: Rod with Positive and Negative Charge2 min

2.4.5. Practice: Electric Potential at the Center of a Half-Ring4 min

2.4.6. Practice: Electric Potential of a Ring3 min

2.4.7. Practice: Electric Potential of a Disk11 min

2.5.1. Conservation of Energy3 min

2.5.2. Example: Two Repulsive Charges7 min

2.5.3. Practice: Conservation of Electric Potential Energy9 min

2.6.1. Equipotential Lines and Surfaces3 min

2.6.2. Example: Drawing Equipotential Lines2 min

2.6.3. Practice: Drawing Equipotential Lines3 min

2.6.4. Practice: Equipotential lines and work done2 min

2.6.5. Practice: Electric Potential and Equipotentials5 min

2.6.6. Practice: Conductors, Charge, and Electric Potential6 min

2.7.1. Conductors and Electric Potential2 min

2.7.2. Example: Graphing Electric Potential 3 min

2.7.3. Example (important!)3 min

2.7.4. Dielectric Breakdown2 min

2.7.5. Practice: Three Conducting Spheres6 min

2.8.1. Relationship Between Electric Field and Potential3 min

2.8.2. Example: Electric Field and Potential4 min

2.8.3. Example: Graphing Electric Field and Potential7 min

2.8.4. Practice: Graphing Electric Field and Potential8 min

2.9.1. Relationship Between Electric Field and Potential (with calculus)3 min

2.9.2. Example: Electric Field from a Potential3 min

2.9.3. Practice: Electric Potential and Potential Energy of a Conducting Sphere4 min

2.9.4. Practice: Electric Potential and Potential Energy of an Insulating Sphere7 min

2.9.5. Practice: Electron Moving Away from Cylindrical Insulator8 min

2.9.6. Practice: Electric Potential of a Spherical Conducting Shell5 min

2.10.1. Capacitance2 min

2.10.2. Example: Capacitance2 min

2.10.3. Capacitors3 min

2.10.4. Example: Parallel-Plate Capacitors3 min

2.10.5. Dielectrics3 min

2.10.6. Practice: Dielectrics5 min

2.10.7. Practice: Capacitor Filled with Several Materials3 min

2.11.1. Capacitance of Concentric Spheres3 min

2.11.2. Capacitance of Concentric Cylinders4 min

2.12.1. Cheatsheet (no calculus)

2.12.2. Cheatsheet (with calculus)

2.Q. Checkpoint Quiz2 Qns

2.P.1. Practice (Part (c) integral removed from main course in 2.9; copy kept here)

3. Magnetic Fields and Magnetic Force

2.6hr

3.1.1. Magnetism and Magnetic Fields2 min

3.1.2. Magnets and Magnetic Materials2 min

3.1.3. Practice: Magnetic Field Lines2 min

3.2.1. Magnetic Force on a Moving Charge5 min

3.2.2. Example: Magnetic Force1 min

3.2.3. Example: Find the direction of magnetic field2 min

3.2.4. Practice: Magnetic Force2 min

3.3.1. Circular Motion in a Magnetic Field3 min

3.3.2. Example: Circular Motion in a Magnetic Field3 min

3.3.3. Example: Circular Motion in a Magnetic Field1 min

3.3.4. Practice: Circular Motion in a Magnetic Field4 min

3.3.5. Practice: Circular Motion in a Magnetic Field2 min

3.3.6. Practice: Helical Motion in a Magnetic Field7 min

3.4.1. Velocity Selectors2 min

3.4.2. Example: Proton Travelling in a Straight Line2 min

3.4.3. Practice: Electron Travelling in a Straight Line3 min

3.5.1. The Hall Effect4 min

3.5.2. Practice: Electron Travelling in a Straight Line4 min

3.6.1. Magnetic Force on a Wire1 min

3.6.2. Magnetic Force on a Wire Element1 min

3.6.3. Example: Magnetic Force on a Wire1 min

3.6.4. Example: Magnetic Force on a Wire (3D)4 min

3.6.5. Practice: Magnetic Force on a Square Wire4 min

3.6.6. Practice: Magnetic Force on a Semi-Circular Wire8 min

3.7.1. Torque on a Current-Carrying Wire3 min

3.7.2. Example: Torque on a Rectangular Current Loop6 min

3.7.3. Practice: Torque on a Circular Current Loop3 min

3.8.1. Biot-Savart Law for a Point Charge3 min

3.8.2. Example: Biot-Savart for a Point Charge8 min

3.8.3. Biot-Savart Law for Currents2 min

3.8.4. Practice: Magnetic Field of a Current Loop (Calculus)3 min

3.9.1. Magnetic Field of Current-Carrying Wires2 min

3.9.2. Example: Magnetic Field Produced by a Wire3 min

3.9.3. Example: Magnetic Field from a Solenoid47 sec

3.9.4. Practice: Two long straight wires4 min

3.9.5. Practice: Magnetic Field of a Loop-de-Loop2 min

3.10.1. Magnetic Force on Parallel Wires3 min

3.10.2. Example: Magnetic Field Between Wires5 min

3.10.3. Practice: Magnetic Field Between Wires4 min

3.11.1. Ampere’s Law1 min

3.11.2. Example: Ampere’s Law3 min

3.11.3. Example: Ampere’s Law4 min

3.11.4. Practice: Ampere's Law - shell

3.11.5. Practice: Ampere's Law - coax7 min

3.11.6. Practice: Ampere's Law - toroid3 min

3.11.7. Practice: Ampere's Law - sheet8 min

3.11.8. Practice: Ampere's law - variable density5 min

3.P.1. Maxwell's Equations and displacement current

3.P.2. Magnetism and free body diagrams

3.P.3. Application: Cyclotron

4. Magnetic Induction

1.5hr

4.1.1. Magnetic Flux1 min

4.1.2. Example: Magnetic Flux3 min

4.1.3. Practice: Magnetic Flux4 min

4.1.4. Magnetic Flux (with calculus)49 sec

4.1.5. Practice (with calculus)8 min

4.2.1. Faraday's Law1 min

4.2.2. Example: Faraday's Law4 min

4.2.3. Motional EMF2 min

4.2.4. Example: Conductor on Rails57 sec

4.2.5. Practice: Motional EMF2 min

4.3.1. Faraday's Law2 min

4.3.2. Practice: Non-Uniform, Time-Dependent Magnetic Field6 min

4.3.3. Practice: Two Rings of Current

4.3.4. Practice: Motional EMF

4.4.1. Lenz's Law2 min

4.4.2. Example: Lenz's Law2 min

4.4.3. Practice: Lenz's Law3 min

4.4.4. Practice: Terminal Velocity and EM Induction (hard!)11 min

4.5.1. Eddy Currents3 min

4.5.2. Example: Eddy Currents3 min

4.6.1. Generators and Motors4 min

4.6.2. Example: Generators3 min

4.6.3. Practice: Motors and Back EMF4 min

4.7.1. Transformers3 min

4.7.2. Example: Transformers3 min

4.8.1. Mutual Inductance2 min

4.8.2. Example: Mutual Inductance2 min

4.8.3. Self-Inductance and Inductors3 min

4.8.4. Practice: Self-Inductance3 min

4.8.5. Example: Inductance of a Solenoid2 min

4.P.1. Magnetic flux - slide and stop

4.P.2. New Lesson (make quadratics version)

4.P.3. Rectangular loop and exponential field change

5. DC Circuits

4hr

5.1.1. Basics of DC Circuits3 min

5.1.2. Electrical Measurements2 min

5.2.1. Electric Current2 min

5.2.2. Practice: Electric Current2 min

5.2.3. Microscopic Current Definition4 min

5.2.4. Example: Drift Speed6 min

5.2.5. Practice: Current Density and Drift Speed2 min

5.3.1. Resistivity and Conductivity2 min

5.3.2. Example: Resistivity and Conductivity3 min

5.3.3. Practice: Electric Field of a wire4 min

5.4.1. Resistance and Ohm's Law2 min

5.4.2. Example: Electrical Resistance3 min

5.4.3. Practice: Ohm's Law2 min

5.5.1. Temperature Dependent Resistors1 min

5.5.2. Example: Resistivity3 min

5.5.3. Practice: Resistivity5 min

5.6.1. Non-Ohmic Resistors3 min

5.7.1. Resistors in Series and Parallel2 min

5.7.2. Example: Equivalent Resistance2 min

5.7.3. Practice: Equivalent Resistance7 min

5.8.1. Kirchhoff’s Rules6 min

5.8.2. Example: Kirchhoff's Rules7 min

5.8.3. Practice: Kirchhoff's Rules10 min

5.9.1. Power and Brightness3 min

5.9.2. Example: Power and Brightness7 min

5.9.3. Practice: Power and Brightness7 min

5.10.1. Real Batteries and Internal Resistance2 min

5.10.2. Example: Internal Resistance4 min

5.10.3. Practice: Internal Resistance2 min

5.11.1. Capacitors and Capacitance4 min

5.11.2. Different Types of Capacitors1 min

5.11.3. Example: Capacitor3 min

5.11.4. Practice: Charging a Capacitor4 min

5.12.1. Energy Stored in a Capacitor1 min

5.12.2. Example: Energy with Capacitor2 min

5.12.3. Practice: Energy with Capacitor6 min

5.12.4. Electric Energy Density1 min

5.12.5. Practice3 min

5.13.1. Capacitors in Series and Parallel4 min

5.13.2. Example: Capacitors in Series and Parallel5 min

5.13.3. Practice: Capacitors in Series and Parallel8 min

5.14.1. Dielectrics5 min

5.14.2. Example: Dielectrics3 min

5.14.3. Practice: Dielectrics8 min

5.15.1. Charging Capacitor14 min

5.15.2. Discharging Capacitor6 min

5.15.3. Example: Charging a Capacitor7 min

5.15.4. Practice: Charging a Capacitor13 min

5.16.1. Inductors5 min

5.16.2. Inductance2 min

5.16.3. RL Circuits: Rising Current4 min

5.16.4. RL Circuits: Decaying Current3 min

5.16.5. Example: RL Circuit5 min

5.16.6. Practice: RL Circuit6 min

5.17.1. LC Circuits8 min

5.17.2. Example: LC Circuits2 min

5.17.3. Practice: LC Circuits4 min

5.18.1. RLC Circuits7 min

5.18.2. Oscillations in Circuits vs. SHM2 min

5.18.3. Example: LRC Circuit7 min

5.19.1. Grounding in Circuits2 min

5.19.2. Example: Grounding6 min

6. AC Circuits

2.5hr

6.1.1. AC Voltage Sources4 min

6.1.2. Example: AC Circuit3 min

6.1.3. Resistive AC Circuits and AC Current4 min

6.1.4. Practice: Resistive AC Circuit4 min

6.2.1. Reactance2 min

6.2.2. AC Circuits with Capacitors5 min

6.2.3. AC Circuits with Inductors4 min

6.2.4. Example: AC Circuit with an Inductor7 min

6.2.5. Practice: AC Circuit with a Capacitor9 min

6.2.6. Phasors2 min

6.3.1. Impedance4 min

6.3.2. RC circuits (AC)3 min

6.3.3. Example: RC Circuit (AC)9 min

6.3.4. RL Circuits (AC)3 min

6.3.5. Practice: RL Circuit (AC)5 min

6.4.1. RLC Circuits (AC)5 min

6.4.2. Example: RLC Circuit in Series (AC)8 min

6.4.3. Resonance3 min

6.4.4. Practice: RLC Circuit (AC) and Resonance4 min

6.4.5. Practice: RLC Series Circuit (AC)13 min

6.5.1. Power Dissipation in RLC Circuits2 min

6.5.2. Example: Resonance and Power3 min

6.5.3. Practice: Series RLC Circuit (AC)7 min

6.5.4. Practice: Series RLC Circuit (AC)7 min

6.6.1. Parallel RLC circuits (AC)5 min

6.6.2. Example: Parallel RLC Circuit (AC)7 min

6.6.3. Practice: Parallel RLC Circuit (AC)6 min

6.7.1. High-Pass and Low-Pass Filters3 min

6.7.2. Example: High-Pass and Low-Pass RC Filters6 min

7. Geometric Optics

1.1hr

7.1.1. Reflection1 min

7.1.2. Refraction4 min

7.1.3. Example: Refraction2 min

7.1.4. Practice: Refraction3 min

7.1.5. Practice: Twins in a mirror1 min

7.2.1. Total Internal Reflection2 min

7.2.2. Practice: Total Internal Reflection57 sec

7.2.3. Practice: Rock under the water1 min

7.3.1. Plane Mirrors3 min

7.3.2. Example: Plane Mirror3 min

7.3.3. Practice: Plane Mirror

7.4.1. Concave and Convex Mirrors4 min

7.4.2. Example: Concave Mirror1 min

7.4.3. Practice: Concave Mirror1 min

7.5.1. Mirrors Equation1 min

7.5.2. Example: Convex Mirror2 min

7.5.3. Practice: Concave Mirror2 min

7.6.1. Convex and Concave Lenses3 min

7.6.2. Example: Convex Lens44 sec

7.6.3. Practice: Convex and Concave Lenses1 min

7.7.1. Lenses Equation1 min

7.7.2. Example: Converging vs Diverging Lens2 min

7.7.3. Practice: Convex Lenses3 min

7.8.1. Principal Rays3 min

7.8.2. Real and Virtual Images2 min

7.8.3. Behavior of Mirrors and Lenses4 min

7.9.1. Lensmaker's Equation2 min

7.9.2. Example: Lenses3 min

7.9.3. Practice: Lenses2 min

7.10.1. Aberrations47 sec

7.11.1. The Eye5 min

7.11.2. Example: Myopia3 min

7.11.3. Practice: Contacts vs. Glasses

7.12.1. Angular Size

7.12.2. Microscopes

7.12.3. Telescopes48 sec

7.12.4. Example: compound microscope

7.12.5. Practice: compound microscope

8. Modern Physics

1hr

8.1.1. The Atom and the Elements2 min

8.1.2. Nuclear Forces and Binding Energy 3 min

8.1.3. Practice: Binding Energy4 min

8.2.1. Radioactive Decays2 min

8.2.2. Alpha Decay2 min

8.2.3. Example: Alpha Decay

8.2.4. Practice: Alpha Decay

8.3.1. Beta Decay52 sec

8.3.2. Beta Negative Decay2 min

8.3.3. Beta Positive Decay2 min

8.3.4. Electron Capture1 min

8.3.5. Example: Decays 4 min

8.3.6. Practice: Decays 3 min

8.4.1. Gamma Decay2 min

8.5.1. Radioactive Decays2 min

8.5.2. Half-Life2 min

8.5.3. Example: Half-Life3 min

8.5.4. Practice: Half-Life2 min

8.6.1. Carbon Dating

8.6.2. Example: Carbon Dating

8.6.3. Practice: Half-Life

8.7.1. Photons (Light = Particle)

8.7.2. de Broglie Wavelength (Particles = Waves)

8.7.3. Example: de Broglie wavelength

8.7.4. Practice: Light Particles

8.8.1. The Compton Effect2 min

8.8.2. Example: Compton Effect1 min

8.8.3. Practice: Compton Effect5 min

8.9.1. Bohr's Model of the Atom

8.9.2. Example: Bohr's Model

8.9.3. Practice: electron shell transitions

8.10.1. The Photoelectric Effect4 min

8.10.2. Example: The Photoelectric Effect43 sec

8.10.3. Practice: The Photoelectric Effect2 min

8.11.1. Lorentz Transformations

8.11.2. Time Dilation and Length Contraction2 min

8.11.3. Example: Special Relativity1 min

8.11.4. Practice: Special Relativity59 sec

8.11.5. Relativistic Velocity Transformations54 sec

8.11.6. Relativistic Momentum and Energy

8.11.7. Practice: Special Relativity5 min

9. Equilibrium & Elasticity

1.7hr

9.1.1. Static Equilibrium3 min

9.1.2. Example: Static Equilibrium of a Ladder15 min

9.1.3. Practice: Static Equilibrium - Man on a Beam13 min

9.2.1. Center of Mass7 min

9.2.2. Center of Mass of Complicated Objects5 min

9.2.3. Example: Center of Mass

9.2.4. Practice: Center of Mass of System of Objects (2D)5 min

9.3.1. Stress and Strain33 min

9.3.2. Elastic Properties of Solids3 min

9.3.3. Practice: Thermal Stress21 min

9.4.1. Stability

10. Sound & Hearing

15min

10.1.1. Sound Waves Patterns

10.1.2. Example: Sound Pressure and Displacement

10.2.1. Sound Waves

10.2.2. Intensity Shortcut Formula

10.2.3. Example: Sound Intensity

10.2.4. Practice: Sound Wave Intensity

10.2.5. Example: Sound Under Water

10.2.6. Sound Waves Concept Clarifier8 min

10.2.7. Sounds Waves: Speed of Sound2 min

10.2.8. Sound Waves Theory - Intensity5 min

10.3.1. Reflection at Boundaries

10.3.2. Example: Wave Reflection

10.3.3. Practice: Wave Open End Reflection

10.3.4. Example: Wave Reflection and Transmission

10.4.1. Constructive and Destructive Interference

10.4.2. Interference Shortcuts

10.4.3. Sound Wave Interference

10.4.4. Example: Sound - Out of Phase

10.4.5. Practice: Sound - Out of Phase

10.5.1. Beat Frequency

10.5.2. Example: Beat Frequency

10.5.3. Practice: Beat Frequency

10.6.1. Doppler Effect

10.6.2. Example: Doppler Frequency

10.6.3. Practice: Doppler Frequency

11. Motion in Two Dimensions

2.9hr

11.1.1. Relative Velocity11 min

11.1.2. Example: : Relative Velocity9 min

11.1.3. Practice: Relative Velocity11 min

11.2.1. Projectile Motion9 min

11.2.2. Example: projectile motion4 min

11.2.3. Practice: Projectile Motion10 min

11.3.1. Two- and Three-Dimensional Kinematics : Part 19 min

11.3.2. Two- and Three-Dimensional Kinematics: Part 27 min

11.3.3. Example: Particle Motion in 3D8 min

11.3.4. Practice: Projectile motion

11.4.1. Uniform Circular Motion and Centripetal Acceleration8 min

11.4.2. Non-uniform Circular motion3 min

11.4.3. Example: Centripetal Acceleration

11.4.4. Practice: Circular Motion - Acceleration3 min

11.5.1. Position Vector11 min

11.5.2. Two- and Three-Dimensional Kinematics : Part 19 min

11.5.3. Practice Question 5: Position Vectors2 min

11.5.4. Practice: Velocity and Acceleration

11.5.5. Example: Velocity and Acceleration8 min

11.5.6. Example: Position from Velocity2 min

11.6.1. Uniform Circular Motion6 min

11.6.2. Example: Uniform circular motion2 min

11.6.3. Practice: Unifirm Circular Motion5 min

11.6.4. Practice : Circular Motion 1

11.6.5. Practice question

11.7.1. Centripetal force12 min

11.7.2. Example: Circular Motion with Changing Radii3 min

11.7.3. Practice: Circular Motion - Vertical Circle8 min

11.7.4. Practice: Marble Sliding on a Rotating Hoop (Tricky!)14 min

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