Tuesday, 24 June 2025

Week 9 Term 2 2025 Simple Harmonic Motion (S.H.M.)

  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

Tuesday, 10 June 2025

Week 7 Term 2 2025 Rotaional Motion

 

 Homework:

C.O.M. & 2D momentum

  • 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 4I, P.167-171, Rotational Force & Momentum
  • Ex 4J, p.175-177, Rotational Kinetic Energy
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



Thursday, 29 May 2025

Week 5 Term 2 2025 Rotational Kinematics

 Homework:

C.O.M. & 2D momentum

  • 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. 128-129, Angular Motion
  • Ex 4H, p.160-162, Rotational Kinematics

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. Note that Angular Velocity may also be called Angular Frequency.

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

Thursday, 8 May 2025

Week 2 Term 2 2025 Circular Motion - Banked Corners - Vertical Circles - Satellites

 Homework:

C.O.M. & 2D momentum

  • 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

Banked Corners

Circular Motion - Banked Curves


Car on a Banked Corner

Free body diagram sine and cosine components



Vertical Circular Motion

Vertical Circular Motion

PhET - Gravity Force Lab



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














Thursday, 1 May 2025

Week 1 Term 2 2025 - C.O.M. and 2D Momentum

 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




Centre of Mass + Momentum


Collision and C.O.M.


Momentum Collision in 2 Dimensions


Momentum in 2D Explained Graphically














 
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