Types of forces:

Contact force:

A force that acts between objects that are physically in contact/touching.

Gravitational force:

The force between any two objects with mass. (Like earth and moon)

Electrostatic force:

The force between any two objects with charge. (Like proton and electron)

Thrust force:

The sudden force. (Like the sudden force/push from rocket engines on the shuttle)

Upthrust force:

The upward force on any object in a fluid. (Like a boat on the surface of a river)

Air resistance (Or drag):

The force of friction between objects falling through the air (Like a skydiver in freefall)

Compression:

The force that squeezes an object. (Like squeezing a spring)

Tension force:

Forces that stretch an object. (Like two teams in a tug-of-war)

Reaction force:

The force between any two objects in a contact. (Like the upward force from a table on a book)

The effects of forces: