Week 1 Term 3 2023

 Homework

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

Act 13B, p.210-211 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

Week 8 Term 2 2023

 Homework

• 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.
• 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
• Act 9A, p. 128-129, Angular Motion
• Act 9B, p. 133-135, Torque - Angular Force
• Act 9C, p. 128-129, Angular Momentum
• Ex 4H, p.160-162, Rotational Kinematics
• Ex 4I, P.167-171, Rotational Force & Momentum
• Ex 4J, p.175-177, Rotational Kinetic Energy
• 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

Masses & Springs PhET Lab

Simple Pendulum PhET Lab

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

Damped SHM & Resonance

Week 6 Term 2 2023

 Homework:

• 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.
• 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
• Act 9A, p. 128-129, Angular Motion
• Act 9B, p. 133-135, Torque - Angular Force
• Act 9C, p. 128-129, Angular Momentum
• Ex 4H, p.160-162, Rotational Kinematics
• Ex 4I, P.167-171, Rotational Force & Momentum
• Ex 4J, p.175-177, Rotational Kinetic Energy

Radians

Radian Measure is used so that we can easily calculate an arc length, d (m), given an angle, 𝛉 (Rad) and the radius, r (m).

d = r𝛉

This in turn allows us to relate velocity, v (ms-1) to angular velocity ⍵ (rads-1), in the same way.

v = r⍵, 

also ⍵ = 2𝝅f

 This also allows us to relate acceleration, a (ms-2), to angular acceleration, α (rads-2), in the same way.

a = rα

The rotational kinematics work just like the translational kinematic equations when there is a constant acceleration.

Rotational Kinematics Review

Rotational Kinematics

Rotational Kinematics Physics: Problems, Basic Introduction, Equations & Formulas

Rotational Motion Physics, Basic Rotational Motion Physics: Introduction, 

Angular Velocity & Tangential Acceleration

Rotational Inertia

Rotational Inertia

Torque

Angular Momentum

Angular Momentum - Sixty Symbols

Gyroscopic Precession

Slow Motion Flipping Cat Physics

Counter Steering Physics

The Bizarre Behavior of Rotating Bodies, Explained

Ellipzoids and the Bizarre Behavior of Rotating Bodies

Week 3 Term 2 2023

 Homework:

• 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.
• 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

Banked Corners

Circular Motion - Banked Curves

Car on a Banked Corner

Free body diagram sine and cosine components

Vertical Circular Loop Model - app

Vertical Circular Motion

    

Vertical Circular Motion

Walter Lewin Vertical Circular Motion

PhET - Gravity Force Lab

PhET - Gravity & Orbits

Gravitation: The Four Fundamental Forces of Physics

Introduction to Newton's law of gravitation | Physics | Khan Academy

Speed of a Satellite in Circular Orbit, Orbital Velocity, Period, Centripetal Force

Gravity Visualised

How Do Satellites Get & Stay in Orbit?

Kepler’s First Law of Motion - Elliptical Orbits 

Kepler’s Second Law of Motion - Equal Area Equal Time Law

Kepler's Third Law of Motion - T2 ∝ R3

Week 2 Term 2 2023

 Homework:

• 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.

Centre of Mass (C.O.M.)

Center of Mass - Science Theater 29

Center of Mass

PhET - Collision Lab - Momentum & C.O.M.

Centre of Mass + Momentum

Collision and C.O.M.

Momentum Collision in 2 Dimensions

Momentum in 2D Explained Graphically

How Hard Can You Hit a Golf Ball?

Week 8 Term 1 2023

Lesics Electronics Enginering Videos

Transistors, How do they work?

MOSFET

Inverter DC --> AC

Thyristor