26. The surface tension of a liquid is influenced by:
a) Temperature
b) Pressure
c) Impurities
d) All of the above
Answer: d) All of the above
27. The shape of a liquid droplet on a surface is determined by:
a) Surface tension
b) Adhesion
c) Gravity
d) All of the above
Answer: d) All of the above
28. The contact angle of a liquid droplet on a surface is a measure of:
a) Surface tension
b) Adhesion
c) Cohesion
d) All of the above
Answer: b) Adhesion
29. The phenomenon of capillary action is used in:
a) Fountain pens
b) Siphoning liquids
c) Paper towel absorption
d) All of the above
Answer: d) All of the above
30. The height to which a liquid rises in a capillary tube is directly proportional to:
a) Surface tension
b) Cohesion
c) Adhesion
d) The density of the liquid
Answer: c) Adhesion
