Trigonometry-Based Physics II
Second semester physics for life sciences majors (non-calculus physics).
Use the drop-down menus or visit the Trigonometry-Based Physics II – Master Video List.
Lecture Videos:
Electric Force, Field, Potential Energy and Potential
- *Introduction to charge and units of charge. [2021.01.23]
- *The force between charges: Coulomb's Law [2021.01.24]
- *Example: Uniform circular motion with Coulomb's Law [2021.01.24]
- *Introduction to electric field, electric field of a point charge, and force exerted by the electric field. [2021.01.24]
- *Example: Electron accelerated by the uniform electric field in a parallel plate capacitor. [2021.01.24]
- *Example: Vector addition for sketching the electric field of a dipole. [2021.01.25]
- *Example: Deflection of an electron shot between charged plates. [2021.01.25]
- *Electric potential energy between two charges. [2021.01.25]
- *Introduction to electric potential.[2021.01.25]
- * Review example: two source charges and a test charge: force, field, potential energy and potential. [2021.01.25]
Additional Examples (previous quiz and test items)
- *Example: Nitrogen-14 atom accelerated through a known potential difference. [2021.03.20]
- *Example: electric field outside a spherical conductor. [2021.02.08]
- *Example: electron accelerated between charged plates, final speed using potential and energy conservation. [2021.01.27]
- *Example: conversion between Joules and electron-volts. [2021.01.27]
- *Example: equipotential lines around a point charge, and graphing electric field using equipotential lines. [2021.01.26]
Vector Review:
Lecture Videos:
Conductors, Capacitance and Current
- *Properties of conductors and field at a distance from a charged conductive sphere. [2021.02.02]
- *Calculating the electric field in a capacitor using potential difference and gap width. [2021.01.30]
- *Definition and units of capacitance + basic example. [2021.01.31]
- *Capacitors in series and parallel combinations + examples. [2021.01.31]
- *The geometry of capacitance: plate area and gap width used to calculate capacitance. [2021.01.31]
- *Energy stored in a capacitor (NOTE: optional derivation part uses a little bit of calculus). [2021.02.01]
- *The effects of a dielectric between the plates of a capacitor. [2021.02.02]
- *Definition of current + basic example, meaning of area under a current-time graph. [2021.02.01]
- *Drift velocity (average speed of the electrons) in a current carrying wire. [2021.02.02]
- *Example: dielectric introduced to a capacitor connected to a battery [2021.02.02]
Additional Examples (previous quiz and test items)
- *Example: capacitors in series and parallel, max and min capacitance [2022.03.06]
- *Example: Charge and energy on a capacitor, required area to build the capacitor. [2022.02.08]
- *Example: foil and paper capacitor rolled up: capacitance, charge and energy. [2022.01.27]
- *Example: current and power of a lightning strike. [2021.03.20]
- *Example: capacitance, charge and energy for a capacitor. [2021.02.08]
- *Example: field, potential, force and energy for electron near a charged sphere. (also in Mod 1 lectures) [2021.02.08]
Lecture Videos:
Ohm's Law, Resistance and Resistor Networks
- *Ohm's Law: motivation, graphical representation and lab demonstration. [2021.02.08]
- *The geometry of resistance: dependence on length and cross section. [2021.02.08]
- *Derivation of drift velocity [2021.02.02]
- *Temperature dependence of resistance + example. [2021.02.09]
- *Power dissipated by a resistor + examples. [2021.02.04]
- *Example: current, charge and power in a simple circuit. [2021.02.07]
- *Resistors in series and parallel + examples. [2021.02.05]
- *Internal resistance and the terminal voltage of a power source. [2021.02.09]
- *Example: simplifying resistor networks 1. [2021.02.07]
- *Example: simplifying resistor networks 2. [2021.02.07]
- *Example: simplifying resistor networks 3. [2021.02.25]
Additional Examples (previous quiz and test items):
Lecture Videos:
Additional DC Circuit Applications, Kirchhoff's Laws, Intro to AC Circuits
- *Example: node voltages in a three resistor circuit lab demo (this is Part 1 of the lab!) [2021.02.13]
- *Introduction to the galvanometer and constructing ammeters and voltmeters. [2021.02.14]
- *Introduction to AC (alternating current) and examples. You can skip the calculus if you like! [2021.02.15]
- *Introduction to Kirchoff's laws and example using a CAS to solve for the branch currents. [2021.02.12]
- *Another Kirchoff example with CAS and an internal dependency in the system of equations. [2021.02.13]
- *Another Kirchoff example using a CAS to solve six equations and six unknowns. [2021.02.25]
Additional Examples (previous quiz and test items)
- *Example: kirchoff circuit with 5 branch currents [2022.03.20]
- *Example: ammeter design [2022.02.18]
- *Example: average and peak power in a simple circuit [2022.02.18]
- *Another Kirchoff example: two power sources, six branches, CAS used to solve the system. [2022.01.28]
- *Another Kirchoff example: two power sources, six branches, CAS used to solve the system. [2022.01.28]
Exams and video solutions from 2023-present will be listed here.
Lecture Videos:
Introduction to Magnetic Fields and Magnetic Force + RC Circuit Lab
- *Introduction to magnets and magnetic fields. [2021.02.27]
- *The Lorentz force law and right-hand rules + examples. [2021.02.22]
- *The velocity selector + examples. [2021.02.23]
- *The Hall effect and Hall probe example. [2021.02.23]
- *Cyclotron motion + example. [2021.02.23]
- *The Bainbridge mass spectrometer + example. [2021.02.24]
- *Example: RC circuit example (relevant to lab). [2022.01.31]
- *Force on a current carrying wire in a magnetic field. [2021.03.01]
- *Torque on a current loop and the basics of electric motors. [2021.03.01]
- *Magnetic fields generated by wires and solenoids. [2021.03.01]
Additional Examples (previous quiz and test items)
- *Example: Lorentz force concept questions [2022.03.20]
- *Example: total magnetic field between two wires [2022.03.20]
- *Example: two qualitative Ampere's law right hand rule examples. [2022.02.04]
- *Example: N-14 accelerating potential and magnetic field in the analyzer region of a mass spectrometer. [2022.02.04]
- *Example: solar wind electron in cyclotron motion about the Earth's magnetic field. [2022.02.04]
Lecture Videos:
Electromagnetic Induction, Inductance and Transformers
- *Introduction to electromagnetic induction and Lenz's Law [2021.03.09]
- *Faraday's Law: induced EMF [2021.03.09]
- *Electric generators and the generator formula [2021.03.09]
- *Motional EMF (from first problem solving set). [2021.03.10]
- *Example: rotating coil in the Earth's magnetic field. [2021.03.10]
- *Example: Lenz's law one coil induces current in another. [2021.03.10]
- *Example: more qualitative examples of induced current in coils. [2022.02.11]
- *Self-Inductance of a solenoid. [2021.03.15]
- *Transformers: voltage and power considerations. [2021.03.15]
Demos:
Lecture Videos:
The RL Circuit and RLC AC Circuit
- *Self-Inductance of a solenoid. [2021.03.15] (video was also in mod7, here as a reminder)
- *RL Circuits: derivation of the current function and half-life + example of using the half life to measure inductance. [2022.03.15]
- *RL Circuits demonstration: measuring inductance using the half-life of an RL circuit. [2022.03.15]
- *RLC Circuits: reactance, impedance and resonance. [2021.03.16]
- *Example: RLC circuit, resonant frequency, rms current, inductive reactance, capacitive reactance, impedance. [2022.01.31]
Exams and video solutions from 2023-present will be listed here.
Lecture Videos:
Electromagnetic Waves, Polarization, Reflection and Refraction
- *Review of transverse waves: amplitude, wavelength, frequency and wave speed. [2020.12.09]
- *Introduction to electromagnetic waves. [2021.03.23]
- *Geometric optics: reflection. [2021.03.23]
- *Geometric optics: refraction and the index of refraction. [2021.03.23]
- *Total internal reflection. [2021.03.23]
- *Polarization of light, polarizing filters and polarization by reflection and scattering. [2021.03.25]
- *Example: refraction and Brewster's angle. [2021.04.13]
- *Example: angular size of the dispersed "rainbow" when white light is refracted. [2021.05.10]
- *Snell's law derived from Fermat's principle of least time (optional and uses calculus). [2022.04.07]
- *Animation: Wave reflections: fixed end vs. free end, fast to slow transitions vs. slow to fast transitions.
Lecture Videos:
Converging and Diverging Lenses + Lens Combinations
- *Introduction to convex (converging) lenses. [2021.03.29]
- *Introduction to concave (diverging) lenses. [2021.03.29]
- *Example: converging lens with object inside the focus. [2022.02.11]
- *Example: diverging lens with object inside the focus. [2022.02.11]
- *Example: simple magnifying glass/converging lens [2022.04.22]
- *Example: image formed by a combination of convex lenses. [2021.03.30]
- *Example: image formed by a lens combination, virtual object case. [2021.03.31]
- *Example: image formed by two converging lenses. [2021.04.13]
- *Example: lens combination, two diverging lenses. [2022.02.14]
- *Example: lens combination, diverging then converging lens. [2022.02.15]
Lecture Videos:
Diffraction, Interference and Thin Film Interference
- *Huygens' principle: introduction, wavelets and diffraction. [2021.04.09]
- *2-slit interference: animation, derivation of formulas for maxima and minima, examples. [2021.04.09]
- *1-slit diffraction: derivation of formula for minima + examples. [2021.04.09]
- *Diffraction gratings + demonstrations and example. [2021.04.13]
- *Light transmission between media: wavelength in a medium. [2021.04.17]
- *Fast-to-slow and slow-to-fast reflections of light. [2021.04.17]
- *Thin film interference: fast-slow-fast, fast-slow-slower, and ultrathin film cases. [2021.04.17]
- *Rayleigh's criterion for resolution in a circular aperture. [2021.04.18]
- *Example: stacked anti-reflective coatings. [2021.05.10]
- *Example: diffraction minimum suppressing an interference maximum. [2022.04.11]
- *Example: first order maximum for 253.7nm UV emission of Mercury + maximum wavelength for the grating. [2022.04.13]
Animations:
Exams and video solutions from 2023-present will be listed here.
Note: lecture videos TBA. I'm still using old Zoom videos that contain copyrighted material. However, there are a few example videos done from previous quizzes and tests.
Additional Examples (previous quiz and test items)
Note: lecture videos TBA. I'm still using old Zoom videos that contain copyrighted material. However, there are a few example videos done from previous quizzes and tests.
Additional Examples (previous quiz and test items)
Note: lecture videos TBA. I'm still using old Zoom videos that contain copyrighted material. However, there are a few example videos done from previous quizzes and tests.