A thick nail keeps its shape, chalk sticks to the board, paint “sticks” to the wall. All of this shows that attractive forces act both between the particles of a body (e.g. nail) and between the particles of different substances (e.g. paint and wall).
The phenomenon that attractive forces act between the particles of a body is known as cohesion. The corresponding forces are called cohesive forces - do my assignments for me . Cohesive forces cause the strength and elasticity of bodies. They are large for solids, lower for liquids and very small for gases .
The phenomenon that attractive forces act between the particles of different bodies is known as adhesion . The corresponding forces are called adhesion forces .
Adhesive forces cause different bodies to adhere to one another (chalk on the blackboard, paint on the wall, glue on wood). The way adhesives work is also based on adhesion. The amount of adhesive forces depends on the respective substances and can be very different - chemistry problem solver . It is particularly large for adhesives, paints and varnishes, and relatively small for most other substances.
Adhesion occurs e.g. B. also between water and the vessel walls, for example with measuring cylinder n. Due to the adhesive forces , there is a curvature of the edge - science homework helper . This curvature of the edge must be taken into account when reading from measuring cylinders.