KS4 Physics Forces

Forces and their Interactions

Representing Forces

• Vectors
• Forces as Vectors
• Free Body Diagram
• Scale Diagram
• Resolving Forces
• Resultant Force

Contact Forces

• Normal Contact Force
• Friction
• Drag
  • Air Resistance
  • Water Resistance
• Upthrust
• Driving Force
• Thrust
• Lift
• Tension

Non-contact Forces

• Magnetic Force
• Electrostatic Force
• Gravitational Force
  • Weight
  • Gravitational Field Strength

Interactions

• Balanced Forces
• Unbalanced Forces
  • Resultant Force
  • Newton's First Law
• Newton's Third Law
  • Force Pair
• Equilibrium Forces
  • Deformation
    • Elastic Deformation
    • Inelastic Deformation
    • Hooke's Law
    • Spring Constant
    • Work Done by Deformation

GCSE Physics Required Practical: Investigating Hooke's Law

Work Done as force x distance, energy transfer

• Work Done
• Mechanical Energy Transfer

Pressure and pressure differences in fluids

• Pressure
  • Normal
• Fluid Pressure
• Atmospheric Pressure
• Upthrust

Moments, Levers and gears

• Moments
  • Centre of Mass
• Levers
• Gears