Mechanical Function Lubricating

Question 1

adhesion

Answer 1

The phenomenon by which two surfaces tend to remain together in contact with each other without slipping

Question 2

Force of friction

Answer 2

Another opposing face that resist the slipping movement

Question 3

The greater the adhesion between two parts…

Answer 3

The greater the force of friction, the greater the adhesion

Question 4

Five factors that affect, and

Answer 4

1) the type of a surface
2) presence of a lubricant
3) temperature of surface
4) state of surface
5) perpendicular force myself

Question 5

The nature of surface

Answer 5

The types of/the kinds of surface used
- rough material= less adhesion

Question 6

presence of a lubricant

Answer 6

• presence of lubricant Oil/cream=less adhesion
• no lubricant = more adhesion

Question 7

temperature of surface

Answer 7

colder = Less adhesion
hotter= more adhesion

Question 8

State of surface

Answer 8

How rough the surfaces are, or how smooth
- grooves scratches and dents= more adhesion
- sanded material smooth= less adhesion

Question 9

perpendicular force

Answer 9

Weight = FG = Les opposite to force perpendicular
- weight= more adhesion
- no weight = less adhesion

Question 10

three lubricant types

Answer 10

1) liquid
2) semi solid
3) solid

Question 11

Liquid lubricant examples

Answer 11

Oil and water

Question 12

Semi solid lubricant examples

Answer 12

Vaseline and butter

Question 13

solid lubricant examples

Answer 13

Wax graffiti and powdered pencil lead

Question 14

how to reduce friction

Answer 14

Lubrication and make smoother by sand or polish