Frosh PhySci - Liquids quiz Flashcards
(10 cards)
F -
T/F Particles of a liquid always take the volume of their container.
False
Think water poured into a glass. It does not expand to fill the entire glass. Only fills a certain volume despite container due to molecule attraction.
F -
Most of the water on Earth exists in the _________ state.
liquid
Why can liquids take the shape of their container?
They can slip past one another due to less attractive force than solids.
Surface tension is the
a- resistance of a liquid to flowing
b- force that causes water to form droplets
c- tendency of fluids to flow downhill
d- friction of particles flowing over a surface
B. Force that causes water to form droplets
Which of these liquids is most viscous? a- water b- milk c- vinegar d- honey
D- honey Viscous - thicker
Define viscosity
Resistance of a liquid to flowing
Contrast particles of a liquid with those of a solid and a gas
Solid - particles tight and cannot move past each other. Retains shape
Liquid - particles fairly tight but can move past to assume shape of a container, yet not completely fill the container
Gas - gas particles pull apart and spread out to fill their container
Explain what causes surface tension
Attraction of particles to each other.
At surface, liquid particles are more attracted to each other than to the air particle above them.
The most common liquid on Earth is ____________.
Water (salt water)
T/F Surface tension and viscosity are unique properties of liquids.
True
