A level - Mechanic 1

1. Forces and
equilibrium

• Mass - weight
• Force diagrams - Newton's 3rd law

Resolving Forces

• Resolving forces

Resultant Forces

• Two forces at an angle
  • example
  • Exam questions
• Three or more forces at an angle
  • Exercise

Equilibrium

• Equilibrium of a particle
  • example
• Exam Questions

Friction

• What is friction, limiting equilibrium and the coefficient of friction?
  • friction example 1
  • friction example 2
• Exam Questions

2. Kinematics of
motion in a
straight line

• Displacement

Displacement Time Graphs

• Displacement time graphs

Motion in a Straight Line

• Motion in a straight line with constant acceleration (suvat)
  • Horizontal motion
    • example 1
    • example 2
  • Vertical motion under gravity
    • book falling from a shelf
    • stone thrown upwards at ground level
    • ball thrown upwards from a balcony
• Exam Questions

Velocity Time Graphs

• Velocity-time graphs
  • example 1
  • example 2
• Exam questions

Differentiation and Integration Methods for general motion

• Linear motion with variable acceleration
  • Exercise
• Exam Questions

3. Newton’s laws of
motion

Newton's Law of Motion : F=ma

• Newton's law of motion : F=ma
  • Motion on a horizontal rough plane
    • example 1
    • example 2
    • example 3
    • Exam Questions
• Motion on a smooth inclined plane
  • example 1
  • example 2
  • example 3
• Motion on a rough inclined plane
  • example 1
• Lift style problems
  • Exam Questions

Connected Particles - Pulleys

• Two particles hanging either side of a pulley
• Vertical strings over a smooth pulley
• Height risen by one particle when the other hits the ground
• Exam Questions
• Horizontal planes

• Smooth horizontal plane with string passing over a pulley
• Exam Questions
• Inclined planes
  • Animation of motion
  • Particle on a rough inclined plane with string passing over a smooth pulley
  • Exam Questions
• Force on pulleys
  • Force on a pulley
  • Exam Questions

Connected Particles - (non pulley type)

• Tow bars
  • Exam Questions
• Particles connected by a horizontal string
  • Exam Questions

4. Energy, work and
power

Work done by a force acting on a particle :

• moving in the horizontal plane, against friction and inclined to the horizontal
• moving in the vertical plane against gravity
• moving up a rough inclined plane against friction and against gravity

Energy

• Gravitational potential energy
• Kinetic energy
• Conservation of energy / work energy principle

Conservation of mechanical energy / Work-Energy Principle

• Vertical motion
• Motion down a smooth plane
• Motion down a rough plane
• Motion down an undulating slope

Power

• Introduction + example : car moving with constant speed horizontally then up a hill
• Car accelerating along the horizontal and then up a hill

Exam Questions

• Exam Questions