Fluids At Rest Flashcards
1
Q
The phenomenons whereby liquids behave like elastic skin is
A
Surface tension
2
Q
The main application of surface tension is
A
Water proof materials and Cleansing action of soap and detergent
3
Q
The use of soap ___ the surface tension of water
A
Weakens
4
Q
When placed in a capillary tube Mercury ___ while water ___
A
Falls while water rises
5
Q
The internal friction between layers of a liquid in motion is
A
Viscosity
6
Q
Rain drops who are opposed by air resistance obtain _____ before hitting the ground
A
terminal velocity
7
Q
The main difference between friction and viscosity is that
A
Friction is independent on area and doesn’t depend on the relative velocity between 2 bodys in contact
8
Q
The viscosity of oil decrease
A
With temperature hence lubricating effects are lowered
