Hi i'm a rat am imma be showing you how I can use force to push this cube down the hall
This is an example of a contact force when I touch this box the effect is a push. some other examples of a contact force is friction(resistance), and elastic(stretching) in this situation applied force is happening because I am pushing this cube
The opposite of this would be a non-contact force which is a type of force that doesn't need to be touched to have an effect this would including gravity( due to mass), magnetic, (repulsion), and electric.