Quantities and forces

• Scalar quantities
• Vector quantities
• Vector quantities

  • Acceleration
  • Momentum
• Free Body Diagrams


  Models forces acting on an object
• Weight


  Caused by gravity
• Weight

  Caused by Gravitational field strength
• Contact forces

  Forces that act between two objects that are physically touching
• Non-Contact forces


  Forces that act between two objects that are not physically touching
• Work done

  Energy is transferred from one store to another
• Work done


  Occurs when a force causes an object to move
• Work done

  Force x Distance
• Resolving forces

  Two forces are added together to find a resultant force
• Resolving forces

  A single force can be resolved into two component forces