Contact and non contact forces

• What are contact forces

  Objects that are physically touching
• what are none contact forces?

  objects that are physically seperated
• What are the main non contact forces?

  Friction, air resistance, tension, normal contact forces
• Example of non contact forces?

  Gravitational force, electrostatic force, magnetic force.
• What Type of quantity is force?

  A vector quantity
• what are forces represented as?

  Vectors