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    Questions about Mechanics
     
Linear Motion The Equations of Motion
  Representing Motion Graphically
  The Acceleration Due to Gravity (Acceleration of Free Fall)
    Newton's Laws of Motion
Experimental Verification of Newton's Second Law of Motion
    Using Newton's Second Law of Motion
    Relative Speed and Velocity:
   
  Introduction
Relative Speed
  Relative Velocity
   
Vectors   Vector Addition
    Resolving a Vector into Two Perpendicular Components
     
Equilibrium   Components of a Force
    The Moment of a Force (Torque)
    Conditions for the Equilibrium of Three Non-Parallel Forces
     
Projectiles   Projectile Motion
    Example: Projectile Thrown Vertically
    Example: Projectile Thrown at Some Other Angle
     
Work, Energy, Power   Work, Energy and Power (Definitions)
    The Law of Conservation of Energy
    Example: Using the Law of Conservation of Energy
    Example: Calculating the Power of a Vehicle
    Kinetic Energy
    Potential Energy (Gravitational)
    Elastic Potential Energy
 
Gravitation   Universal Gravitation
    Theoretical Justification for Variables in the Universal Law of Gravitation
    Relation Between g and G
  Gravitational Field Strength
    Gravitational Potential
    Escape Velocity
    Acceleration Due to Gravity on Different Planets
     
Circular Motion and   Circular Motion: Basic Definitions
Gravitation   Acceleration of a Body Moving in a Circular Path at Constant Speed (Centripetal Force)
    Testing the Inverse Square Law of Gravitation
    Banking of a Road Surface
    Aircraft Turning (Moving in a Circular Path)
    Kepler's Laws of Planetary Motion
    Kepler's Third Law of Planetary Motion "Explained"
    Energy Changes in a Gravitational Field
     
Collisions   Elastic Collisions
    Elastic Collisions: An Example
    Non-Elastic Collisions
    Linear Momentum
    The Relation Between Force and Momentum
    Conservation of Linear Momentum and Newton's Laws of Motion
     
Friction   Friction
    The Coefficients of Friction
    Friction: worked example
     
Pressure   Definition of Pressure
    Pressure Exerted by a Fluid
     
Mechanical Oscillations   Basic Ideas about Oscillations
    Definition of Simple Harmonic Motion
    The Relation Between Circular Motion and Simple Harmonic Motion
    Animation: Relation Between Circular Motion and S.H.M
    Displacement-Time Relation for a Simple Harmonic Motion
    Velocity-Time Relation for a Simple Harmonic Motion
  Graphs Describing Simple Harmonic Motion
    Phase and Phase Difference
    Mass-Spring Oscillator
    Simple Pendulum
     
Rotational Dynamics   Rotational Dynamics Basics
    Factors Affecting the Moment of Inertia of a Body
    Comparing the Equations for Linear and Rotational Dynamics
    Moment of Inertia of a Point Mass
    Angular Momentum
    Examples of Conservation of Angular Momentum
    Angular Momentum of a Point Mass
 
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These pages were contributed by David Hoult BSc, PiS (retired).
Mr Hoult supports a number of animal welfare groups, including:
Compassion in world farming Campaigns against “factory farming” and long distance animal transport.
Branches in UK, USA, France, Italy and many other countries.
L214 Multiple animal welfare campaigns (in France).The name L214 comes from the reference of a law which finally accepted that animals are sentient beings, capable of having feelings and hence capable of suffering.
Comité Radicalement Anti-Corrida Against the barbaric practice of bull “fighting” (or bull torturing to give it a more apt description).
Stop Gavage Against force feeding (gavage) of ducks and geese for foie gras.
Welfarm (formerly Protection Mondiale des Animaux de Ferme, PMAF) French organization having the same aims as CIWF: against “factory farming” and long distance animal transport.
People for the Ethical Treatment of Animals Campaigns especially against the fur trade but also many other animal cruelty issues.
Please consider helping to improve the miserable existence of animals raised for meat, leather, fur etc and to finally put end to the barbaric practice of bull “fighting”.
Thank you.