Forces and their interactions

Scalar quantity- magnitude ONLY

Vector quantity- Magnitude+direction

contact forces- physically touching e.g. friction, Air resistance, normal human contact

non-contact forces- physically sepearted e.g Gravitational force, Magnetic force, and electrostatic forces 

magnitude is the great size of something 

• NOTE- upthrust only occurs in a liquid!!

the resultant force is the net effect of all the forces acting on an…