Sunday, 29 May 2022

Week 5 Term 2 2022

  Homework

  • Act 7A, p.96-97 Motion, Force & Energy
  • Act 7B, p.100-102 Impulse
  • Act 7C, p.105-106 Conservation of Momentum
  • Act 7D, p.110-112 Centre of Mass (C.O.M.)
  • Ex 4A, p.100-102 Centre of Mass (C.O.M.)
  • Ex 4B, p. 108-112 C.O.M. & Momentum
  • 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, š›‰ (Rad) and the radius, r (m).

d = rš›‰

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

v = r⍵, 

also ⍵ = 2š…f

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

a = rĪ±

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


Tuesday, 24 May 2022

Week 4 Term 2 2022

  Homework

  • Act 7A, p.96-97 Motion, Force & Energy
  • Act 7B, p.100-102 Impulse
  • Act 7C, p.105-106 Conservation of Momentum
  • Act 7D, p.110-112 Centre of Mass (C.O.M.)
  • Ex 4A, p.100-102 Centre of Mass (C.O.M.)
  • Ex 4B, p. 108-112 C.O.M. & Momentum
  • 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

Walter Lewin Vertical Circular Motion




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

Wednesday, 18 May 2022

Week 3 Term 2 2022

 Homework

  • Act 7A, p.96-97 Motion, Force & Energy
  • Act 7B, p.100-102 Impulse
  • Act 7C, p.105-106 Conservation of Momentum
  • Act 7D, p.110-112 Centre of Mass (C.O.M.)
  • Ex 4A, p.100-102 Centre of Mass (C.O.M.)
  • Ex 4B, p. 108-112 C.O.M. & Momentum

Translational Motion


Linear Motion

Newton’s Laws of Motion




Newton's Third Law


Free Body Diagrams


Tension Free Body Diagram

Center of Mass


Centre of Mass (C.O.M.)


Center of Mass - Science Theater 29






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?