contact and non contact forces

• force is a vector - magnitude and direction
• a scalar is only magnitude
• vector qualities consists of force, velocity, displacement, acceleration and momentum
• scalar consists of speed, distance, mass temperature and time
• the length of an arrow shows magnitude, direction shows direction of quantity
• a contact force is when two objects have to be touching for a force to act
• a contact force is friction, air resistance, tension
• a non contact force is when objects do not need to be touching for a force to act
• a non contact force is magnetic force, gravitational force, electrostatic force
• when objects interact , there is a force produced on both objects
• an interaction pair is a pair of forces that are equal and opposite and act on two interacting objects