1.
a type of friction between air and the surface of an object moving through it
2.
a force applied on an object by a person or another object
3.
a drawing that shows the different forces that act on an object
4.
a force that supports an object placed on a surface, acting in the opposite direction of gravity
5.
an upward force exerted by water that acts in the opposite direction to gravity
6.
force that exists between two surfaces
