Contact and non-contact forces

What do vector quantities have?

A magnitude and direction

What are 5 examples of a vector quantity

Force, velocity, displacement, acceleration, momentum

What do scalar quantities have?

Magnitude but no direction

what are 5 examples of scalar quantities?

Speed, distance, mass, temperature, time

What are vector quantities usually represented by?

Arrows

What do the length and direction of vector arrows show

Length shows magnitude and direction shows direction

Name 4 contact forces

Friction, air resistance, tension, normal contact force

Name 3 non-contact forces

Magnetic forces, gravitational forces, electrostatic forces

What is meant by contact force?

A force between 2 objects due to the objects touching

What is meant by non-contact force?

A force between 2 objects which exists when the objects are not touching

What is an interaction pair?

A pair of forces that act on 2 interacting objects, the forces are equal and opposite