Thursday, 2 July 2026

Week 11 Term 2 2026 Capacitors

  Homework

Basic Circuit Revision

    • Act 13A, p.205-206 Level 2 D.C. Circuit Revision


    Internal Resistance of a Battery

    • Act 13B, p.210-211 Internal Resistance of a Battery

    • Ex 6B, P.261-262 Internal Resistance of a Battery


    Resistor Networks (Resistors in Series and Parallel)

    • Ex 6A, p.251-253 Resistor Networks


    Kirchhoff’s Laws

    • Act 13C, p.214-216 Kirchhoff's Laws

    • Ex 6C, p.267-272 Kirchhoff's Laws


    Capacitors

    • Act 14A, p.240 Capacitance & Capacitors

    • Act 14B, p.244-245 Capacitor Networks & Energy

    • Act 14C, p.249-251 Charging & Discharging Capacitors

    • Ex 6D, p.277-280 Capacitor Energy

    • Ex 6E, p.283-284 Capacitors

    • Ex 6F, p.289-292 Capacitor Networks

    • Ex 6G, p.298-300 Charging & Discharging Capacitors


    Capacitor
    C = Q/V


    Capacitors
    Basic Definition
    Physical Parameters
    Energy Stored
    Ep = ½ QV


    Capacitors & Capacitance

    Capacitors Explained

    Dielectric

    An insulating material placed in between the capacitor plates to increase the Capacitance

    C = 𝜺r𝜺oA/d






    Dielectrics in Capacitors

    PhET Capacitor Lab Basics - App


    Capacitor Circuits


    Capacitors in Series
    Calculating Voltage Charge and Total Capacitance

    Capacitors in Parallel
    Calculating Voltage Charge and Total Capacitance


    Capacitors in Parallel vs Capacitors in Series


    Capacitors in Combination
    Series & Parallel Capacitors

    Capacitors in Combination
    Patrallel & Series Capacitors

    Capacitors in Series
    Calculating Voltage Drop


    Capacitors in Series
    Calculating the Charge Stored

    Capacitors in Series
    Calculating the Equivalent Capacitance


    Capacitors in Parallel
    Calculating Voltage Drop

    Capacitors in Parallel
    Calculating the Charge Stored


    Capacitors in Parallel
    Calculating the Equivalent Capacitance


    Capacitor Charge & Discharge



    RC Circuits 1: Charging and Discharging a Capacitor


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    Tuesday, 23 June 2026

    Week 10 Term 2 2026 Internal Resistance of a Battery

      Homework

  • Act 13A, p.222 Level 2 D.C. Circuit Revision
  • Act 13B, p.226-227 Internal Resistance of a Battery
  • Ex 6A, p.251-253 Resistor Networks
  • Ex 6B, P.261-262 Internal Resistance of a Battery

    • Electrical Charge

    Current
    Current is the rate of flow of Charge

    I = Δq/Δt

    Current

    Voltage
    Voltage (Potential Difference) is the change in energy (work done) to each coulomb of charge between two points on a circuit, or two points across an electric field

    Voltage
    Voltage (Potential Difference) is the change in energy (work done) to each coulomb of charge between two points on a circuit, or two points across an electric field

    V = ΔE/Q

    Ohm's Law & Resistance

    Power


    Circuit Symbols

    Ohm's Law

    Ohm's Law - PhET App

    D.C. Circuit Construction Kit - PhET App

    Ohm's Law


    Internal Resistance of a Battery
    Batteries can be thought of as having an ideal voltage supply E.M.F. (Electromotive Force) in series with an internal resistance

    V = 𝛆 - Ir


    How to find the internal resistance of a battery

  • Kichhoff's Laws
  • Kirchhoff’s Current Law
    “At any junction in a circuit, the total current entering the junction equals the total current leaving the junction”
    Kirchhoff’s Voltage Law
    “Around any closed path of a circuit, the total of all the potential differences, V, is zero”

    Kirchhoff's Rules for Circuit Analysis - Explanation

    Kirchhoff's Rules for Circuit Analysis - Example 1

    Kirchhoff's Rules for Circuit Analysis - Example 2

    Kirchhoff's Rules for Circuit Analysis - Example 3
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    Tuesday, 9 June 2026

    Week 8 Term 2 2026 Simple Harmonic Motion

     Homework:

    2D Momentum and Centre of Mass C.O.M.
    • Ex 4A, p.100-102, C.O.M.
    • Ex 4B, p.108-112, Momentum & C.O.M. in 1D
    • Ex 4C, p.116-122, Momentum & C.O.M. in 2D
    • Act 7A, p.87-88 Motion, Force and Energy
    • Act 7B, p.91-92 Impulse
    • Act 7C, p.95-96 Conservation of Momentum
    • Act 7D, p.100-101 C.O.M.

    Circular Motion
    • Act 8A, p.120-121 Horizontal Circles and Banked Corners
    • Act 8B, p.124-125 Vertical Circles
    • Act 8C, p.129 Sattelites
    • Ex 4D, p.128-131, Banked Corners (Circular Motion)
    • Ex 4E, p.138-142, Vertical Circles
    • Ex 4F, p.145-147, Gravity
    • Ex 4G, p.153-156 Satallites

    Rotational Motion

    • Act 9A, p. 139-140, Angular Motion

    • Act 9B, p. 144-145, Torque - Rotational Inertia

    • Act 9C, p.149-150, Angular Momentum

    • Act 9D, p.153-154 Rotational Kinetic Energy

    • Ex 4H, p.160-162, Rotational Kinematics

    • Ex 4H, p.160-162, Rotational Kinematics

    • Ex 4I, P.167-171, Rotational Force & Momentum

    • Ex 4J, p.175-177, Rotational Kinetic Energy


    Simple Harmonic Motion
    • Act 10A, p. 148, Simple Harmonic Motion (SHM)
    • Act 10B, p.153, Reference CIrcle
    • Act 10C, p. 158-160, SHM - displacement, velocity, acceleration
    • Act 10D, p. 164-165, Springs and Pendulums
    • Act 10E, p. 172, SHM Energy, Damped, Driven, Resonance
    • Ex 4K, p.184-187, Pendulums and Bouncing Springs
    • Ex 4L, p.191-194, SHM

    Simple Harmonic Motion - SHM






    SHM

    Simple Harmonic Motion: Crash Course Physics

    Pendulum Wave Demonstration





    SHM & Energy


    Energy of Simple Harmonic Oscillators

    Damped SHM

    Damping of Simple Harmonic Motion

    Damped SHM & Resonance

    PhET - Resonance Lab

    Tacoma Bridge Collapse

    How The Millennium Bridge Became The World's Most Wobbly Bridge



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